22112112 has 40 divisors (see below), whose sum is σ = 62317440. Its totient is φ = 6700480.

The previous prime is 22112107. The next prime is 22112141. The reversal of 22112112 is 21121122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a congruent number.

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, 20412 + ... + 21467.

It is an arithmetic number, because the mean of its divisors is an integer number (1557936).

Almost surely, 2^22112112 is an apocalyptic number.

22112112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22112112 is an abundant number, since it is smaller than the sum of its proper divisors (40205328).

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

22112112 is a wasteful number, since it uses less digits than its factorization.

22112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41901 (or 41895 counting only the distinct ones).

The product of its digits is 16, while the sum is 12.

The square root of 22112112 is about 4702.3517520492. The cubic root of 22112112 is about 280.6790999082.

Adding to 22112112 its reverse (21121122), we get a palindrome (43233234).

It can be divided in two parts, 2 and 2112112, that multiplied together give a palindrome (4224224).

The spelling of 22112112 in words is "twenty-two million, one hundred twelve thousand, one hundred twelve".