22536261131 has 4 divisors (see below), whose sum is σ = 22613176992. Its totient is φ = 22459345272.

The previous prime is 22536261127. The next prime is 22536261161. The reversal of 22536261131 is 13116263522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13116263522 = 2 ⋅6558131761.

It is a cyclic number.

It is not a de Polignac number, because 22536261131 - 2² = 22536261127 is a prime.

It is a super-2 number, since 2×22536261131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22536261161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38457491 + ... + 38458076.

It is an arithmetic number, because the mean of its divisors is an integer number (5653294248).

Almost surely, 2^22536261131 is an apocalyptic number.

22536261131 is a deficient number, since it is larger than the sum of its proper divisors (76915861).

22536261131 is an equidigital number, since it uses as much as digits as its factorization.

22536261131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76915860.

The product of its digits is 12960, while the sum is 32.

The spelling of 22536261131 in words is "twenty-two billion, five hundred thirty-six million, two hundred sixty-one thousand, one hundred thirty-one".