22252172 has 12 divisors (see below), whose sum is σ = 40197696. Its totient is φ = 10767120.

The previous prime is 22252163. The next prime is 22252177. The reversal of 22252172 is 27125222.

It is not an unprimeable number, because it can be changed into a prime (22252177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89603 + ... + 89850.

It is an arithmetic number, because the mean of its divisors is an integer number (3349808).

Almost surely, 2^22252172 is an apocalyptic number.

It is an amenable number.

22252172 is a deficient number, since it is larger than the sum of its proper divisors (17945524).

22252172 is a wasteful number, since it uses less digits than its factorization.

22252172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179488 (or 179486 counting only the distinct ones).

The product of its digits is 1120, while the sum is 23.

The square root of 22252172 is about 4717.2207919494. The cubic root of 22252172 is about 281.2704681729.

Adding to 22252172 its reverse (27125222), we get a palindrome (49377394).

The spelling of 22252172 in words is "twenty-two million, two hundred fifty-two thousand, one hundred seventy-two".