122 (one hundred [and] twenty-two) is the natural number following 121 and preceding 123. In mathematics 122 is a nontotient since there is no integer with exactly 122 coprimes below it. Nor is there an integer with exactly 122 integers with common factors below it, making 122 a noncototient. 122 is a semiprime. 122 is the sum of squares of the divisors of 11. φ(122) = φ(σ(122)). In telephony The fire emergency telephone number in Austria The police emergency telephone number in Egypt The traffic emergency telephone number in China The police emergency telephone number in Bosnia and Herzegovina In other fields 122 is also: The atomic number of the chemical element unbibium The number of men of Michmas at the census (Bible, Nehemiah 7:31) The Enroute Flight Advisory Service (EFAS) "Flight Watch" frequency: 122.0 MHz The oldest age in years to which a human being has ever been authenticated to live (Jeanne Calment). See also List of highways numbered 122 United Nations Security Council Resolution 122 References Integers