12219944 has 16 divisors (see below), whose sum is σ = 24995520. Its totient is φ = 5554480.

The previous prime is 12219931. The next prime is 12219973. The reversal of 12219944 is 44991221.

12219944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 12219944.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69344 + ... + 69519.

It is an arithmetic number, because the mean of its divisors is an integer number (1562220).

Almost surely, 2^12219944 is an apocalyptic number.

It is an amenable number.

12219944 is an abundant number, since it is smaller than the sum of its proper divisors (12775576).

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

12219944 is a wasteful number, since it uses less digits than its factorization.

12219944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138880 (or 138876 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 12219944 is about 3495.7036487666. The cubic root of 12219944 is about 230.3331278567. Note that the first 3 decimals are identical.

The spelling of 12219944 in words is "twelve million, two hundred nineteen thousand, nine hundred forty-four".