122651970531 has 16 divisors (see below), whose sum is σ = 166316866560. Its totient is φ = 80386413120.

The previous prime is 122651970527. The next prime is 122651970547. The reversal of 122651970531 is 135079156221.

It is a happy number.

It is not a de Polignac number, because 122651970531 - 2² = 122651970527 is a prime.

It is a super-2 number, since 2×122651970531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122651970521) 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, 1055335 + ... + 1165776.

It is an arithmetic number, because the mean of its divisors is an integer number (10394804160).

Almost surely, 2^122651970531 is an apocalyptic number.

122651970531 is a deficient number, since it is larger than the sum of its proper divisors (43664896029).

122651970531 is a wasteful number, since it uses less digits than its factorization.

122651970531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221426.

The product of its (nonzero) digits is 113400, while the sum is 42.

The spelling of 122651970531 in words is "one hundred twenty-two billion, six hundred fifty-one million, nine hundred seventy thousand, five hundred thirty-one".