22544212 has 12 divisors (see below), whose sum is σ = 40370176. Its totient is φ = 11009880.

The previous prime is 22544201. The next prime is 22544213. The reversal of 22544212 is 21244522.

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 (22544213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65364 + ... + 65707.

Almost surely, 2^22544212 is an apocalyptic number.

It is an amenable number.

22544212 is a deficient number, since it is larger than the sum of its proper divisors (17825964).

22544212 is a wasteful number, since it uses less digits than its factorization.

22544212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131118 (or 131116 counting only the distinct ones).

The product of its digits is 1280, while the sum is 22.

The square root of 22544212 is about 4748.0745571231. The cubic root of 22544212 is about 282.4955991692.

Adding to 22544212 its reverse (21244522), we get a palindrome (43788734).

The spelling of 22544212 in words is "twenty-two million, five hundred forty-four thousand, two hundred twelve".