12224564 has 48 divisors (see below), whose sum is σ = 25220160. Its totient is φ = 5122560.

The previous prime is 12224561. The next prime is 12224587. The reversal of 12224564 is 46542221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12224561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43994 + ... + 44270.

It is an arithmetic number, because the mean of its divisors is an integer number (525420).

Almost surely, 2^12224564 is an apocalyptic number.

It is an amenable number.

12224564 is an abundant number, since it is smaller than the sum of its proper divisors (12995596).

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

12224564 is a wasteful number, since it uses less digits than its factorization.

12224564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 366 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 12224564 is about 3496.3643974849. The cubic root of 12224564 is about 230.3621515841.

Adding to 12224564 its reverse (46542221), we get a palindrome (58766785).

The spelling of 12224564 in words is "twelve million, two hundred twenty-four thousand, five hundred sixty-four".