22112772 has 24 divisors (see below), whose sum is σ = 56287392. Its totient is φ = 6700800.

The previous prime is 22112731. The next prime is 22112773. The reversal of 22112772 is 27721122.

It is not an unprimeable number, because it can be changed into a prime (22112773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83629 + ... + 83892.

It is an arithmetic number, because the mean of its divisors is an integer number (2345308).

Almost surely, 2^22112772 is an apocalyptic number.

22112772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22112772 is an abundant number, since it is smaller than the sum of its proper divisors (34174620).

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

22112772 is a wasteful number, since it uses less digits than its factorization.

22112772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167539 (or 167537 counting only the distinct ones).

The product of its digits is 784, while the sum is 24.

The square root of 22112772 is about 4702.4219291765. The cubic root of 22112772 is about 280.6818924405.

Adding to 22112772 its reverse (27721122), we get a palindrome (49833894).

The spelling of 22112772 in words is "twenty-two million, one hundred twelve thousand, seven hundred seventy-two".