22120632254256 has 40 divisors (see below), whose sum is σ = 57147109188720. Its totient is φ = 7373267629056.

The previous prime is 22120632254197. The next prime is 22120632254297. The reversal of 22120632254256 is 65245223602122.

It is a super-2 number, since 2×22120632254256² (a number of 27 digits) contains 22 as substring.

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, 7343661 + ... + 9908108.

It is an arithmetic number, because the mean of its divisors is an integer number (1428677729718).

Almost surely, 2^{22120632254256} is an apocalyptic number.

It is an amenable number.

22120632254256 is an abundant number, since it is smaller than the sum of its proper divisors (35026476934464).

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

22120632254256 is a wasteful number, since it uses less digits than its factorization.

22120632254256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17278493 (or 17278487 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

Adding to 22120632254256 its reverse (65245223602122), we get a palindrome (87365855856378).

The spelling of 22120632254256 in words is "twenty-two trillion, one hundred twenty billion, six hundred thirty-two million, two hundred fifty-four thousand, two hundred fifty-six".