12219421244 has 12 divisors (see below), whose sum is σ = 21475765584. Its totient is φ = 6083488224.

The previous prime is 12219421231. The next prime is 12219421267. The reversal of 12219421244 is 44212491221.

It is a self number, because there is not a number n which added to its sum of digits gives 12219421244.

It is a congruent number.

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, 6554552 + ... + 6556415.

It is an arithmetic number, because the mean of its divisors is an integer number (1789647132).

Almost surely, 2^12219421244 is an apocalyptic number.

It is an amenable number.

12219421244 is a deficient number, since it is larger than the sum of its proper divisors (9256344340).

12219421244 is a wasteful number, since it uses less digits than its factorization.

12219421244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13111204 (or 13111202 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The spelling of 12219421244 in words is "twelve billion, two hundred nineteen million, four hundred twenty-one thousand, two hundred forty-four".