22131113331 has 16 divisors (see below), whose sum is σ = 30531260160. Its totient is φ = 14242707360.

The previous prime is 22131113321. The next prime is 22131113339. The reversal of 22131113331 is 13331113122.

It is a happy number.

It is not a de Polignac number, because 22131113331 - 2⁶ = 22131113267 is a prime.

It is a super-2 number, since 2×22131113331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22131113298 and 22131113307.

It is not an unprimeable number, because it can be changed into a prime (22131113339) 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, 529986 + ... + 570216.

It is an arithmetic number, because the mean of its divisors is an integer number (1908203760).

Almost surely, 2^22131113331 is an apocalyptic number.

22131113331 is a deficient number, since it is larger than the sum of its proper divisors (8400146829).

22131113331 is a wasteful number, since it uses less digits than its factorization.

22131113331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46586.

The product of its digits is 324, while the sum is 21.

Adding to 22131113331 its reverse (13331113122), we get a palindrome (35462226453).

The spelling of 22131113331 in words is "twenty-two billion, one hundred thirty-one million, one hundred thirteen thousand, three hundred thirty-one".