22112013 has 16 divisors (see below), whose sum is σ = 36758016. Its totient is φ = 11486640.

The previous prime is 22112009. The next prime is 22112017. The reversal of 22112013 is 31021122.

It is an interprime number because it is at equal distance from previous prime (22112009) and next prime (22112017).

It is not a de Polignac number, because 22112013 - 2² = 22112009 is a prime.

It is a super-2 number, since 2×22112013² = 977882237824338, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22112013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112017) 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, 47631 + ... + 48092.

It is an arithmetic number, because the mean of its divisors is an integer number (2297376).

Almost surely, 2^22112013 is an apocalyptic number.

It is an amenable number.

22112013 is a deficient number, since it is larger than the sum of its proper divisors (14646003).

22112013 is a wasteful number, since it uses less digits than its factorization.

22112013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95744.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 22112013 is about 4702.3412253898. The cubic root of 22112013 is about 280.6786810235.

Adding to 22112013 its reverse (31021122), we get a palindrome (53133135).

It can be divided in two parts, 2211 and 2013, that added together give a palindrome (4224).

The spelling of 22112013 in words is "twenty-two million, one hundred twelve thousand, thirteen".