122 (number)
Encyclopedia
122 is the natural number following 121
and preceding 123
.
since there is no integer with exactly 122 coprime
s below it. Nor is there an integer with exactly 122 integers with common factors below it, making 122 a noncototient
.
121 (number)
121 is the natural number following 120 and preceding 122.-In mathematics:One hundred [and] twenty-one is a square and is the sum of three consecutive primes . There are no squares besides 121 known to be of the form 1 + p + p^2 + p^3 + p^4, where p is prime...
and preceding 123
123 (number)
123 is the natural number following 122 and preceding 124.-In mathematics:* 123 is a Lucas number...
.
In mathematics
It is a nontotientNontotient
In number theory, a nontotient is a positive integer n which is not in the range of Euler's totient function φ, that is, for which φ = n has no solution. In other words, n is a nontotient if there is no integer x that has exactly n coprimes below it. All odd numbers are nontotients, except 1,...
since there is no integer with exactly 122 coprime
Coprime
In number theory, a branch of mathematics, two integers a and b are said to be coprime or relatively prime if the only positive integer that evenly divides both of them is 1. This is the same thing as their greatest common divisor being 1...
s below it. Nor is there an integer with exactly 122 integers with common factors below it, making 122 a noncototient
Noncototient
In mathematics, a noncototient is a positive integer n that cannot be expressed as the difference between a positive integer m and the number of coprime integers below it. That is, m − φ = n, where φ stands for Euler's totient function, has no solution for m...
.
In telephony
- The fire emergency telephone numberEmergency telephone numberMany countries' public telephone networks have a single emergency telephone number, sometimes known as the universal emergency telephone number or occasionally the emergency services number, that allows a caller to contact local emergency services for assistance. The emergency telephone number may...
in AustriaAustriaAustria , officially the Republic of Austria , is a landlocked country of roughly 8.4 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Slovakia and Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the... - The police emergency telephone numberEmergency telephone numberMany countries' public telephone networks have a single emergency telephone number, sometimes known as the universal emergency telephone number or occasionally the emergency services number, that allows a caller to contact local emergency services for assistance. The emergency telephone number may...
in EgyptEgyptEgypt , officially the Arab Republic of Egypt, Arabic: , is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Southwest Asia. Egypt is thus a transcontinental country, and a major power in Africa, the Mediterranean Basin, the Middle East and the Muslim world... - The traffic emergency telephone numberEmergency telephone numberMany countries' public telephone networks have a single emergency telephone number, sometimes known as the universal emergency telephone number or occasionally the emergency services number, that allows a caller to contact local emergency services for assistance. The emergency telephone number may...
in ChinaChinaChinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...
In other fields
122 is also:- The atomic numberAtomic numberIn chemistry and physics, the atomic number is the number of protons found in the nucleus of an atom and therefore identical to the charge number of the nucleus. It is conventionally represented by the symbol Z. The atomic number uniquely identifies a chemical element...
of the chemical elementChemical elementA chemical element is a pure chemical substance consisting of one type of atom distinguished by its atomic number, which is the number of protons in its nucleus. Familiar examples of elements include carbon, oxygen, aluminum, iron, copper, gold, mercury, and lead.As of November 2011, 118 elements...
unbibiumUnbibiumUnbibium , also referred to as eka-thorium or element 122, is the temporary name of a currently unknown chemical element in the periodic table that has the temporary symbol Ubb and the atomic number 122.... - The number of men of Michmas at the census (BibleBibleThe Bible refers to any one of the collections of the primary religious texts of Judaism and Christianity. There is no common version of the Bible, as the individual books , their contents and their order vary among denominations...
, NehemiahNehemiahNehemiah ]]," Standard Hebrew Nəḥemya, Tiberian Hebrew Nəḥemyāh) is the central figure of the Book of Nehemiah, which describes his work rebuilding Jerusalem and purifying the Jewish community. He was the son of Hachaliah, Nehemiah ]]," Standard Hebrew Nəḥemya, Tiberian Hebrew Nəḥemyāh) is the...
7:31) - The age of Jeanne CalmentJeanne CalmentJeanne Louise Calment was a French supercentenarian who had the longest confirmed human life span in history, living to the age of . She lived in Arles, France, for her entire life, and outlived both her daughter and grandson. She became especially well known from the age of 113, when the...
when she died.
See also
- List of highways numbered 122
- United Nations Security Council Resolution 122United Nations Security Council Resolution 122United Nations Security Council Resolution 122 was adopted on the 24 January 1957 and concerned the dispute between the governments of India and Pakistan over the territories of Jammu and Kashmir. It was the first of three security resolutions in 1957 to deal with the dispute between the countries...