122157110 has 16 divisors (see below), whose sum is σ = 220312656. Its totient is φ = 48767328.

The previous prime is 122157043. The next prime is 122157131. The reversal of 122157110 is 11751221.

It is a happy number.

It is a congruent 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, 6449 + ... + 16908.

It is an arithmetic number, because the mean of its divisors is an integer number (13769541).

Almost surely, 2^122157110 is an apocalyptic number.

122157110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122157110 is a deficient number, since it is larger than the sum of its proper divisors (98155546).

122157110 is a wasteful number, since it uses less digits than its factorization.

122157110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23887.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 122157110 is about 11052.4707644942. The cubic root of 122157110 is about 496.1803752354.

The spelling of 122157110 in words is "one hundred twenty-two million, one hundred fifty-seven thousand, one hundred ten".