22201513231 has 4 divisors (see below), whose sum is σ = 22334456592. Its totient is φ = 22068569872.

The previous prime is 22201513219. The next prime is 22201513249. The reversal of 22201513231 is 13231510222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22201513231 is a prime.

It is a super-2 number, since 2×22201513231² (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 (22201513031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66471430 + ... + 66471763.

It is an arithmetic number, because the mean of its divisors is an integer number (5583614148).

Almost surely, 2^22201513231 is an apocalyptic number.

22201513231 is a deficient number, since it is larger than the sum of its proper divisors (132943361).

22201513231 is a wasteful number, since it uses less digits than its factorization.

22201513231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132943360.

The product of its (nonzero) digits is 720, while the sum is 22.

The spelling of 22201513231 in words is "twenty-two billion, two hundred one million, five hundred thirteen thousand, two hundred thirty-one".