122136320 has 36 divisors (see below), whose sum is σ = 292557720. Its totient is φ = 48854016.

The previous prime is 122136317. The next prime is 122136331. The reversal of 122136320 is 23631221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 122136292 and 122136301.

It is a congruent number.

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, 46430 + ... + 48989.

Almost surely, 2^122136320 is an apocalyptic number.

122136320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122136320 is an abundant number, since it is smaller than the sum of its proper divisors (170421400).

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

122136320 is an frugal number, since it uses more digits than its factorization.

122136320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95440 (or 95426 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 122136320 is about 11051.5302107898. The cubic root of 122136320 is about 496.1522252154.

Adding to 122136320 its reverse (23631221), we get a palindrome (145767541).

The spelling of 122136320 in words is "one hundred twenty-two million, one hundred thirty-six thousand, three hundred twenty".