22813227 has 12 divisors (see below), whose sum is σ = 34089120. Its totient is φ = 14684208.

The previous prime is 22813213. The next prime is 22813229. The reversal of 22813227 is 72231822.

It is a happy number.

It is not a de Polignac number, because 22813227 - 2¹¹ = 22811179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22813227.

It is not an unprimeable number, because it can be changed into a prime (22813229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43443 + ... + 43964.

It is an arithmetic number, because the mean of its divisors is an integer number (2840760).

Almost surely, 2^22813227 is an apocalyptic number.

22813227 is a deficient number, since it is larger than the sum of its proper divisors (11275893).

22813227 is a wasteful number, since it uses less digits than its factorization.

22813227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87442 (or 87439 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 22813227 is about 4776.3193988677. The cubic root of 22813227 is about 283.6148112378.

The spelling of 22813227 in words is "twenty-two million, eight hundred thirteen thousand, two hundred twenty-seven".