22522012 has 6 divisors (see below), whose sum is σ = 39413528. Its totient is φ = 11261004.

The previous prime is 22522007. The next prime is 22522021. The reversal of 22522012 is 21022522.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2815248 + ... + 2815255.

Almost surely, 2^22522012 is an apocalyptic number.

It is an amenable number.

22522012 is a deficient number, since it is larger than the sum of its proper divisors (16891516).

22522012 is a wasteful number, since it uses less digits than its factorization.

22522012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5630507 (or 5630505 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 22522012 is about 4745.7361915724. The cubic root of 22522012 is about 282.4028412590.

Adding to 22522012 its reverse (21022522), we get a palindrome (43544534).

The spelling of 22522012 in words is "twenty-two million, five hundred twenty-two thousand, twelve".