22013233 has 16 divisors (see below), whose sum is σ = 25061760. Its totient is φ = 19152000.

The previous prime is 22013227. The next prime is 22013239. The reversal of 22013233 is 33231022.

It is an interprime number because it is at equal distance from previous prime (22013227) and next prime (22013239).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22013233 is a prime.

It is a super-2 number, since 2×22013233² = 969164854224578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22013239) 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, 47941 + ... + 48397.

It is an arithmetic number, because the mean of its divisors is an integer number (1566360).

Almost surely, 2^22013233 is an apocalyptic number.

It is an amenable number.

22013233 is a deficient number, since it is larger than the sum of its proper divisors (3048527).

22013233 is a wasteful number, since it uses less digits than its factorization.

22013233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 22013233 is about 4691.8261903016. The cubic root of 22013233 is about 280.2601026936.

Adding to 22013233 its reverse (33231022), we get a palindrome (55244255).

The spelling of 22013233 in words is "twenty-two million, thirteen thousand, two hundred thirty-three".