22231113213 has 16 divisors (see below), whose sum is σ = 29799756800. Its totient is φ = 14741732160.

The previous prime is 22231113209. The next prime is 22231113227. The reversal of 22231113213 is 31231113222.

It is not a de Polignac number, because 22231113213 - 2² = 22231113209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22231113213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231113613) 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, 719268 + ... + 749538.

It is an arithmetic number, because the mean of its divisors is an integer number (1862484800).

Almost surely, 2^22231113213 is an apocalyptic number.

It is an amenable number.

22231113213 is a deficient number, since it is larger than the sum of its proper divisors (7568643587).

22231113213 is a wasteful number, since it uses less digits than its factorization.

22231113213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31572.

The product of its digits is 432, while the sum is 21.

Adding to 22231113213 its reverse (31231113222), we get a palindrome (53462226435).

Subtracting 22231113213 from its reverse (31231113222), we obtain a palindrome (9000000009).

The spelling of 22231113213 in words is "twenty-two billion, two hundred thirty-one million, one hundred thirteen thousand, two hundred thirteen".