12667212 has 48 divisors (see below), whose sum is σ = 33475680. Its totient is φ = 4140864.

The previous prime is 12667183. The next prime is 12667223. The reversal of 12667212 is 21276621.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4618 + ... + 6830.

It is an arithmetic number, because the mean of its divisors is an integer number (697410).

Almost surely, 2^12667212 is an apocalyptic number.

12667212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12667212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16737840).

12667212 is an abundant number, since it is smaller than the sum of its proper divisors (20808468).

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

12667212 is a wasteful number, since it uses less digits than its factorization.

12667212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279 (or 2271 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 12667212 is about 3559.1026959052. The cubic root of 12667212 is about 233.1097004720.

The spelling of 12667212 in words is "twelve million, six hundred sixty-seven thousand, two hundred twelve".