22124312 has 32 divisors (see below), whose sum is σ = 47567520. Its totient is φ = 9450240.

The previous prime is 22124309. The next prime is 22124339. The reversal of 22124312 is 21342122.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 25388 + ... + 26244.

It is an arithmetic number, because the mean of its divisors is an integer number (1486485).

Almost surely, 2^22124312 is an apocalyptic number.

It is an amenable number.

22124312 is an abundant number, since it is smaller than the sum of its proper divisors (25443208).

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

22124312 is a wasteful number, since it uses less digits than its factorization.

22124312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331 (or 1327 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 22124312 is about 4703.6487964133. The cubic root of 22124312 is about 280.7307104681.

Adding to 22124312 its reverse (21342122), we get a palindrome (43466434).

The spelling of 22124312 in words is "twenty-two million, one hundred twenty-four thousand, three hundred twelve".