122729405922 has 54 divisors (see below), whose sum is σ = 269943836331. Its totient is φ = 40298926920.

The previous prime is 122729405899. The next prime is 122729405941. The reversal of 122729405922 is 229504927221.

122729405922 is a `hidden beast` number, since 12 + 2 + 7 + 2 + 9 + 40 + 592 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 61364702961 + 61364702961 = 247719^2 + 247719^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=247719.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 105527713 + ... + 105528875.

Almost surely, 2^122729405922 is an apocalyptic number.

122729405922 is an abundant number, since it is smaller than the sum of its proper divisors (147214430409).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122729405922 is an frugal number, since it uses more digits than its factorization.

122729405922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476 (or 1239 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 122729405922 in words is "one hundred twenty-two billion, seven hundred twenty-nine million, four hundred five thousand, nine hundred twenty-two".