22272612 has 24 divisors (see below), whose sum is σ = 52264800. Its totient is φ = 7382016.

The previous prime is 22272611. The next prime is 22272619. The reversal of 22272612 is 21627222.

It is not an unprimeable number, because it can be changed into a prime (22272611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3037 + ... + 7332.

It is an arithmetic number, because the mean of its divisors is an integer number (2177700).

Almost surely, 2^22272612 is an apocalyptic number.

It is an amenable number.

22272612 is an abundant number, since it is smaller than the sum of its proper divisors (29992188).

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

22272612 is a wasteful number, since it uses less digits than its factorization.

22272612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10555 (or 10553 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 22272612 is about 4719.3868245780. The cubic root of 22272612 is about 281.3565632733.

Adding to 22272612 its reverse (21627222), we get a palindrome (43899834).

The spelling of 22272612 in words is "twenty-two million, two hundred seventy-two thousand, six hundred twelve".