12522172 has 12 divisors (see below), whose sum is σ = 23599576. Its totient is φ = 5779440.

The previous prime is 12522157. The next prime is 12522173. The reversal of 12522172 is 27122521.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12522173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120354 + ... + 120457.

Almost surely, 2^12522172 is an apocalyptic number.

It is an amenable number.

12522172 is a deficient number, since it is larger than the sum of its proper divisors (11077404).

12522172 is a wasteful number, since it uses less digits than its factorization.

12522172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240828 (or 240826 counting only the distinct ones).

The product of its digits is 560, while the sum is 22.

The square root of 12522172 is about 3538.6681110271. The cubic root of 12522172 is about 232.2165783735.

Adding to 12522172 its reverse (27122521), we get a palindrome (39644693).

The spelling of 12522172 in words is "twelve million, five hundred twenty-two thousand, one hundred seventy-two".