22112168 has 32 divisors (see below), whose sum is σ = 44944200. Its totient is φ = 10138368.

The previous prime is 22112159. The next prime is 22112173. The reversal of 22112168 is 86121122.

It can be written as a sum of positive squares in 4 ways, for example, as 22108804 + 3364 = 4702^2 + 58^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17378 + ... + 18606.

Almost surely, 2^22112168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22112168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22472100).

22112168 is an abundant number, since it is smaller than the sum of its proper divisors (22832032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22112168 is a wasteful number, since it uses less digits than its factorization.

22112168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421 (or 1417 counting only the distinct ones).

The product of its digits is 384, while the sum is 23.

The square root of 22112168 is about 4702.3577065128. The cubic root of 22112168 is about 280.6793368525.

The spelling of 22112168 in words is "twenty-two million, one hundred twelve thousand, one hundred sixty-eight".