22668212 has 12 divisors (see below), whose sum is σ = 45336480. Its totient is φ = 9714936.

The previous prime is 22668209. The next prime is 22668251. The reversal of 22668212 is 21286622.

22668212 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404762 + ... + 404817.

It is an arithmetic number, because the mean of its divisors is an integer number (3778040).

Almost surely, 2^22668212 is an apocalyptic number.

It is an amenable number.

22668212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22668212 is a wasteful number, since it uses less digits than its factorization.

22668212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809590 (or 809588 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 22668212 is about 4761.1145753909. The cubic root of 22668212 is about 283.0125896000.

The spelling of 22668212 in words is "twenty-two million, six hundred sixty-eight thousand, two hundred twelve".