22013233231 has 16 divisors (see below), whose sum is σ = 25064057088. Its totient is φ = 19137729600.

The previous prime is 22013233223. The next prime is 22013233247. The reversal of 22013233231 is 13233231022.

It is not a de Polignac number, because 22013233231 - 2³ = 22013233223 is a prime.

It is a super-2 number, since 2×22013233231² (a number of 21 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 (22013233201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1870636 + ... + 1882366.

It is an arithmetic number, because the mean of its divisors is an integer number (1566503568).

Almost surely, 2^22013233231 is an apocalyptic number.

22013233231 is a deficient number, since it is larger than the sum of its proper divisors (3050823857).

22013233231 is a wasteful number, since it uses less digits than its factorization.

22013233231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19182.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 22013233231 its reverse (13233231022), we get a palindrome (35246464253).

The spelling of 22013233231 in words is "twenty-two billion, thirteen million, two hundred thirty-three thousand, two hundred thirty-one".