122721683236 has 24 divisors (see below), whose sum is σ = 215165099520. Its totient is φ = 61246029600.

The previous prime is 122721683179. The next prime is 122721683237. The reversal of 122721683236 is 632386127221.

It is a super-2 number, since 2×122721683236² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122721683192 and 122721683201.

It is not an unprimeable number, because it can be changed into a prime (122721683237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6319101 + ... + 6338491.

It is an arithmetic number, because the mean of its divisors is an integer number (8965212480).

Almost surely, 2^122721683236 is an apocalyptic number.

It is an amenable number.

122721683236 is a deficient number, since it is larger than the sum of its proper divisors (92443416284).

122721683236 is a wasteful number, since it uses less digits than its factorization.

122721683236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22275 (or 22273 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The spelling of 122721683236 in words is "one hundred twenty-two billion, seven hundred twenty-one million, six hundred eighty-three thousand, two hundred thirty-six".