22285212 has 12 divisors (see below), whose sum is σ = 51998856. Its totient is φ = 7428400.

The previous prime is 22285171. The next prime is 22285213. The reversal of 22285212 is 21258222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22285213) 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, 928539 + ... + 928562.

It is an arithmetic number, because the mean of its divisors is an integer number (4333238).

Almost surely, 2^22285212 is an apocalyptic number.

It is an amenable number.

22285212 is an abundant number, since it is smaller than the sum of its proper divisors (29713644).

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

22285212 is a wasteful number, since it uses less digits than its factorization.

22285212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857108 (or 1857106 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 22285212 is about 4720.7215550168. The cubic root of 22285212 is about 281.4096093552.

The spelling of 22285212 in words is "twenty-two million, two hundred eighty-five thousand, two hundred twelve".