22214172 has 24 divisors (see below), whose sum is σ = 54882576. Its totient is φ = 6969088.

The previous prime is 22214161. The next prime is 22214177. The reversal of 22214172 is 27141222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22214177) 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, 54243 + ... + 54650.

It is an arithmetic number, because the mean of its divisors is an integer number (2286774).

Almost surely, 2^22214172 is an apocalyptic number.

It is an amenable number.

22214172 is an abundant number, since it is smaller than the sum of its proper divisors (32668404).

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

22214172 is a wasteful number, since it uses less digits than its factorization.

22214172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108917 (or 108915 counting only the distinct ones).

The product of its digits is 448, while the sum is 21.

The square root of 22214172 is about 4713.1912755584. The cubic root of 22214172 is about 281.1102685650.

Adding to 22214172 its reverse (27141222), we get a palindrome (49355394).

The spelling of 22214172 in words is "twenty-two million, two hundred fourteen thousand, one hundred seventy-two".