122111999972 has 12 divisors (see below), whose sum is σ = 213698446080. Its totient is φ = 61055301096.

The previous prime is 122111999969. The next prime is 122111999987. The reversal of 122111999972 is 279999111221.

It is a super-2 number, since 2×122111999972² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609929 + ... + 785007.

It is an arithmetic number, because the mean of its divisors is an integer number (17808203840).

Almost surely, 2^122111999972 is an apocalyptic number.

It is an amenable number.

122111999972 is a deficient number, since it is larger than the sum of its proper divisors (91586446108).

122111999972 is a wasteful number, since it uses less digits than its factorization.

122111999972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349450 (or 349448 counting only the distinct ones).

The product of its digits is 367416, while the sum is 53.

The spelling of 122111999972 in words is "one hundred twenty-two billion, one hundred eleven million, nine hundred ninety-nine thousand, nine hundred seventy-two".