122311120121 has 4 divisors (see below), whose sum is σ = 122323071312. Its totient is φ = 122299168932.

The previous prime is 122311120117. The next prime is 122311120123. The reversal of 122311120121 is 121021113221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122311120121 - 2² = 122311120117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122311120121.

It is not an unprimeable number, because it can be changed into a prime (122311120123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5960231 + ... + 5980716.

It is an arithmetic number, because the mean of its divisors is an integer number (30580767828).

Almost surely, 2^122311120121 is an apocalyptic number.

It is an amenable number.

122311120121 is a deficient number, since it is larger than the sum of its proper divisors (11951191).

122311120121 is a wasteful number, since it uses less digits than its factorization.

122311120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11951190.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 122311120121 its reverse (121021113221), we get a palindrome (243332233342).

The spelling of 122311120121 in words is "one hundred twenty-two billion, three hundred eleven million, one hundred twenty thousand, one hundred twenty-one".