22931226261 has 6 divisors (see below), whose sum is σ = 33122882390. Its totient is φ = 15287484168.

The previous prime is 22931226229. The next prime is 22931226281. The reversal of 22931226261 is 16262213922.

22931226261 is a `hidden beast` number, since 2 + 2 + 9 + 3 + 1 + 22 + 626 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20080307025 + 2850919236 = 141705^2 + 53394^2 .

It is not a de Polignac number, because 22931226261 - 2⁵ = 22931226229 is a prime.

It is a super-2 number, since 2×22931226261² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22931226281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1273957006 + ... + 1273957023.

Almost surely, 2^22931226261 is an apocalyptic number.

It is an amenable number.

22931226261 is a deficient number, since it is larger than the sum of its proper divisors (10191656129).

22931226261 is a wasteful number, since it uses less digits than its factorization.

22931226261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547914035 (or 2547914032 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The spelling of 22931226261 in words is "twenty-two billion, nine hundred thirty-one million, two hundred twenty-six thousand, two hundred sixty-one".