122561252826 has 64 divisors (see below), whose sum is σ = 263992627200. Its totient is φ = 37816632000.

The previous prime is 122561252789. The next prime is 122561252839. The reversal of 122561252826 is 628252165221.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 991695 + ... + 1108413.

It is an arithmetic number, because the mean of its divisors is an integer number (4124884800).

Almost surely, 2^122561252826 is an apocalyptic number.

122561252826 is an abundant number, since it is smaller than the sum of its proper divisors (141431374374).

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

122561252826 is a wasteful number, since it uses less digits than its factorization.

122561252826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116955.

The product of its digits is 230400, while the sum is 42.

The spelling of 122561252826 in words is "one hundred twenty-two billion, five hundred sixty-one million, two hundred fifty-two thousand, eight hundred twenty-six".