122717785772 has 6 divisors (see below), whose sum is σ = 214756125108. Its totient is φ = 61358892884.

The previous prime is 122717785733. The next prime is 122717785867. The reversal of 122717785772 is 277587717221.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15339723218 + ... + 15339723225.

It is an arithmetic number, because the mean of its divisors is an integer number (35792687518).

Almost surely, 2^122717785772 is an apocalyptic number.

It is an amenable number.

122717785772 is a deficient number, since it is larger than the sum of its proper divisors (92038339336).

122717785772 is a wasteful number, since it uses less digits than its factorization.

122717785772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30679446447 (or 30679446445 counting only the distinct ones).

The product of its digits is 5378240, while the sum is 56.

The spelling of 122717785772 in words is "one hundred twenty-two billion, seven hundred seventeen million, seven hundred eighty-five thousand, seven hundred seventy-two".