22124012 has 12 divisors (see below), whose sum is σ = 38785656. Its totient is φ = 11042400.

The previous prime is 22124009. The next prime is 22124023. The reversal of 22124012 is 21042122.

It is a super-2 number, since 2×22124012² = 978943813952288, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 2198 + ... + 7005.

It is an arithmetic number, because the mean of its divisors is an integer number (3232138).

Almost surely, 2^22124012 is an apocalyptic number.

It is an amenable number.

22124012 is a deficient number, since it is larger than the sum of its proper divisors (16661644).

22124012 is a wasteful number, since it uses less digits than its factorization.

22124012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9808 (or 9806 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 22124012 is about 4703.6169061691. The cubic root of 22124012 is about 280.7294415836.

Adding to 22124012 its reverse (21042122), we get a palindrome (43166134).

The spelling of 22124012 in words is "twenty-two million, one hundred twenty-four thousand, twelve".