22213331231 has 64 divisors (see below), whose sum is σ = 30440551680. Its totient is φ = 15707381760.

The previous prime is 22213331213. The next prime is 22213331267. The reversal of 22213331231 is 13213331222.

It is not a de Polignac number, because 22213331231 - 2³⁰ = 21139589407 is a prime.

It is a super-4 number, since 4×22213331231⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 22213331197 and 22213331206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22213331531) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2732585 + ... + 2740701.

It is an arithmetic number, because the mean of its divisors is an integer number (475633620).

Almost surely, 2^22213331231 is an apocalyptic number.

22213331231 is a deficient number, since it is larger than the sum of its proper divisors (8227220449).

22213331231 is a wasteful number, since it uses less digits than its factorization.

22213331231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8244.

The product of its digits is 1296, while the sum is 23.

Adding to 22213331231 its reverse (13213331222), we get a palindrome (35426662453).

Subtracting from 22213331231 its reverse (13213331222), we obtain a palindrome (9000000009).

The spelling of 22213331231 in words is "twenty-two billion, two hundred thirteen million, three hundred thirty-one thousand, two hundred thirty-one".