12922224 has 40 divisors (see below), whose sum is σ = 38152320. Its totient is φ = 3691968.

The previous prime is 12922219. The next prime is 12922229. The reversal of 12922224 is 42222921.

It is an interprime number because it is at equal distance from previous prime (12922219) and next prime (12922229).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 12922194 and 12922203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12922229) by changing a digit.

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, 18894 + ... + 19565.

It is an arithmetic number, because the mean of its divisors is an integer number (953808).

Almost surely, 2^12922224 is an apocalyptic number.

12922224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12922224 is an abundant number, since it is smaller than the sum of its proper divisors (25230096).

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

12922224 is a wasteful number, since it uses less digits than its factorization.

12922224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38477 (or 38471 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 12922224 is about 3594.7495044857. The cubic root of 12922224 is about 234.6636140845.

The spelling of 12922224 in words is "twelve million, nine hundred twenty-two thousand, two hundred twenty-four".