12678212 has 12 divisors (see below), whose sum is σ = 22312080. Its totient is φ = 6303336.

The previous prime is 12678199. The next prime is 12678223. The reversal of 12678212 is 21287621.

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, 8138 + ... + 9569.

It is an arithmetic number, because the mean of its divisors is an integer number (1859340).

Almost surely, 2^12678212 is an apocalyptic number.

It is an amenable number.

12678212 is a deficient number, since it is larger than the sum of its proper divisors (9633868).

12678212 is a wasteful number, since it uses less digits than its factorization.

12678212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17890 (or 17888 counting only the distinct ones).

The product of its digits is 2688, while the sum is 29.

The square root of 12678212 is about 3560.6476938894. The cubic root of 12678212 is about 233.1771571685.

The spelling of 12678212 in words is "twelve million, six hundred seventy-eight thousand, two hundred twelve".