22013291 has 16 divisors (see below), whose sum is σ = 23654400. Its totient is φ = 20448288.

The previous prime is 22013281. The next prime is 22013339. The reversal of 22013291 is 19231022.

It is a cyclic number.

It is not a de Polignac number, because 22013291 - 2⁶ = 22013227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22013221) 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, 158300 + ... + 158438.

It is an arithmetic number, because the mean of its divisors is an integer number (1478400).

Almost surely, 2^22013291 is an apocalyptic number.

22013291 is a deficient number, since it is larger than the sum of its proper divisors (1641109).

22013291 is a wasteful number, since it uses less digits than its factorization.

22013291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 22013291 is about 4691.8323712597. The cubic root of 22013291 is about 280.2603488345.

The spelling of 22013291 in words is "twenty-two million, thirteen thousand, two hundred ninety-one".