122499888018 has 16 divisors (see below), whose sum is σ = 245568226176. Its totient is φ = 40738554320.

The previous prime is 122499887953. The next prime is 122499888041. The reversal of 122499888018 is 810888994221.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23682621 + ... + 23687792.

It is an arithmetic number, because the mean of its divisors is an integer number (15348014136).

Almost surely, 2^122499888018 is an apocalyptic number.

122499888018 is an abundant number, since it is smaller than the sum of its proper divisors (123068338158).

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

122499888018 is a wasteful number, since it uses less digits than its factorization.

122499888018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47370849.

The product of its (nonzero) digits is 5308416, while the sum is 60.

The spelling of 122499888018 in words is "one hundred twenty-two billion, four hundred ninety-nine million, eight hundred eighty-eight thousand, eighteen".