22920212 has 12 divisors (see below), whose sum is σ = 45840480. Its totient is φ = 9822936.

The previous prime is 22920181. The next prime is 22920217. The reversal of 22920212 is 21202922.

22920212 is an admirable number.

It is a super-2 number, since 2×22920212² = 1050672236249888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22920217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409262 + ... + 409317.

It is an arithmetic number, because the mean of its divisors is an integer number (3820040).

Almost surely, 2^22920212 is an apocalyptic number.

It is an amenable number.

22920212 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.

22920212 is a wasteful number, since it uses less digits than its factorization.

22920212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818590 (or 818588 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 22920212 is about 4787.5058224508. The cubic root of 22920212 is about 284.0574670457.

It can be divided in two parts, 22920 and 212, that added together give a palindrome (23132).

The spelling of 22920212 in words is "twenty-two million, nine hundred twenty thousand, two hundred twelve".