122155112 has 8 divisors (see below), whose sum is σ = 229040850. Its totient is φ = 61077552.

The previous prime is 122155109. The next prime is 122155129. The reversal of 122155112 is 211551221.

It can be written as a sum of positive squares in only one way, i.e., 100681156 + 21473956 = 10034^2 + 4634^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7634687 + ... + 7634702.

Almost surely, 2^122155112 is an apocalyptic number.

It is an amenable number.

122155112 is a deficient number, since it is larger than the sum of its proper divisors (106885738).

122155112 is a wasteful number, since it uses less digits than its factorization.

122155112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15269395 (or 15269391 counting only the distinct ones).

The product of its digits is 200, while the sum is 20.

The square root of 122155112 is about 11052.3803770952. The cubic root of 122155112 is about 496.1776700475.

The spelling of 122155112 in words is "one hundred twenty-two million, one hundred fifty-five thousand, one hundred twelve".