12555212 has 6 divisors (see below), whose sum is σ = 21971628. Its totient is φ = 6277604.

The previous prime is 12555199. The next prime is 12555241. The reversal of 12555212 is 21255521.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569398 + ... + 1569405.

It is an arithmetic number, because the mean of its divisors is an integer number (3661938).

Almost surely, 2^12555212 is an apocalyptic number.

It is an amenable number.

12555212 is a deficient number, since it is larger than the sum of its proper divisors (9416416).

12555212 is a wasteful number, since it uses less digits than its factorization.

12555212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138807 (or 3138805 counting only the distinct ones).

The product of its digits is 1000, while the sum is 23.

The square root of 12555212 is about 3543.3334587645. Note that the first 3 decimals coincide. The cubic root of 12555212 is about 232.4206350304.

The spelling of 12555212 in words is "twelve million, five hundred fifty-five thousand, two hundred twelve".