122598895221 has 32 divisors (see below), whose sum is σ = 198461059200. Its totient is φ = 74181824640.

The previous prime is 122598895099. The next prime is 122598895261.

122598895221 is a `hidden beast` number, since 1 + 2 + 25 + 98 + 8 + 9 + 522 + 1 = 666.

122598895221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 122598895221 - 2⁷ = 122598895093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122598895261) 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, 151266 + ... + 517763.

It is an arithmetic number, because the mean of its divisors is an integer number (6201908100).

Almost surely, 2^122598895221 is an apocalyptic number.

122598895221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122598895221 is a deficient number, since it is larger than the sum of its proper divisors (75862163979).

122598895221 is a wasteful number, since it uses less digits than its factorization.

122598895221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669666 (or 669660 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 54.

The spelling of 122598895221 in words is "one hundred twenty-two billion, five hundred ninety-eight million, eight hundred ninety-five thousand, two hundred twenty-one".