122172099020 has 48 divisors (see below), whose sum is σ = 271684119168. Its totient is φ = 45988976640.

The previous prime is 122172099017. The next prime is 122172099041. The reversal of 122172099020 is 20990271221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4351949 + ... + 4379931.

It is an arithmetic number, because the mean of its divisors is an integer number (5660085816).

Almost surely, 2^122172099020 is an apocalyptic number.

122172099020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122172099020 is an abundant number, since it is smaller than the sum of its proper divisors (149512020148).

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

122172099020 is a wasteful number, since it uses less digits than its factorization.

122172099020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40850 (or 40848 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 122172099020 in words is "one hundred twenty-two billion, one hundred seventy-two million, ninety-nine thousand, twenty".