122002111010121 has 16 divisors (see below), whose sum is σ = 162756334232064. Its totient is φ = 81291317313024.

The previous prime is 122002111010093. The next prime is 122002111010137. The reversal of 122002111010121 is 121010111200221.

It is a happy number.

It is not a de Polignac number, because 122002111010121 - 2²⁷ = 122001976792393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122002111010121.

It is not an unprimeable number, because it can be changed into a prime (122002111010621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164198376 + ... + 164939718.

It is an arithmetic number, because the mean of its divisors is an integer number (10172270889504).

Almost surely, 2^{122002111010121} is an apocalyptic number.

It is an amenable number.

122002111010121 is a deficient number, since it is larger than the sum of its proper divisors (40754223221943).

122002111010121 is a wasteful number, since it uses less digits than its factorization.

122002111010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770560.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 122002111010121 its reverse (121010111200221), we get a palindrome (243012222210342).

The spelling of 122002111010121 in words is "one hundred twenty-two trillion, two billion, one hundred eleven million, ten thousand, one hundred twenty-one".