22120113232221 has 32 divisors (see below), whose sum is σ = 30627607248000. Its totient is φ = 14183596992768.

The previous prime is 22120113232213. The next prime is 22120113232289. The reversal of 22120113232221 is 12223231102122.

It is not a de Polignac number, because 22120113232221 - 2³ = 22120113232213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22120113232191 and 22120113232200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120113232621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211253346 + ... + 211358028.

It is an arithmetic number, because the mean of its divisors is an integer number (957112726500).

Almost surely, 2^{22120113232221} is an apocalyptic number.

It is an amenable number.

22120113232221 is a deficient number, since it is larger than the sum of its proper divisors (8507494015779).

22120113232221 is a wasteful number, since it uses less digits than its factorization.

22120113232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114013.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 22120113232221 its reverse (12223231102122), we get a palindrome (34343344334343).

The spelling of 22120113232221 in words is "twenty-two trillion, one hundred twenty billion, one hundred thirteen million, two hundred thirty-two thousand, two hundred twenty-one".