12215884 has 6 divisors (see below), whose sum is σ = 21377804. Its totient is φ = 6107940.

The previous prime is 12215851. The next prime is 12215897. The reversal of 12215884 is 48851221.

12215884 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1526982 + ... + 1526989.

Almost surely, 2^12215884 is an apocalyptic number.

It is an amenable number.

12215884 is a deficient number, since it is larger than the sum of its proper divisors (9161920).

12215884 is a wasteful number, since it uses less digits than its factorization.

12215884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053975 (or 3053973 counting only the distinct ones).

The product of its digits is 5120, while the sum is 31.

The square root of 12215884 is about 3495.1228876822. The cubic root of 12215884 is about 230.3076161172.

The spelling of 12215884 in words is "twelve million, two hundred fifteen thousand, eight hundred eighty-four".