122138610 has 48 divisors (see below), whose sum is σ = 322213248. Its totient is φ = 29608480.

The previous prime is 122138561. The next prime is 122138629. The reversal of 122138610 is 16831221.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13194 + ... + 20453.

It is an arithmetic number, because the mean of its divisors is an integer number (6712776).

Almost surely, 2^122138610 is an apocalyptic number.

122138610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122138610 is an abundant number, since it is smaller than the sum of its proper divisors (200074638).

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

122138610 is a wasteful number, since it uses less digits than its factorization.

122138610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33679 (or 33668 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 122138610 is about 11051.6338158663. The cubic root of 122138610 is about 496.1553260716.

Adding to 122138610 its reverse (16831221), we get a palindrome (138969831).

The spelling of 122138610 in words is "one hundred twenty-two million, one hundred thirty-eight thousand, six hundred ten".