122072476521 has 32 divisors (see below), whose sum is σ = 172812676608. Its totient is φ = 76383682560.

The previous prime is 122072476501. The next prime is 122072476543. The reversal of 122072476521 is 125674270221.

It is a happy number.

It is not a de Polignac number, because 122072476521 - 2⁶ = 122072476457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122072476521.

It is not an unprimeable number, because it can be changed into a prime (122072476501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36514176 + ... + 36517518.

It is an arithmetic number, because the mean of its divisors is an integer number (5400396144).

Almost surely, 2^122072476521 is an apocalyptic number.

It is an amenable number.

122072476521 is a deficient number, since it is larger than the sum of its proper divisors (50740200087).

122072476521 is a wasteful number, since it uses less digits than its factorization.

122072476521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121.

The product of its (nonzero) digits is 94080, while the sum is 39.

The spelling of 122072476521 in words is "one hundred twenty-two billion, seventy-two million, four hundred seventy-six thousand, five hundred twenty-one".