12055212 has 36 divisors (see below), whose sum is σ = 32818240. Its totient is φ = 3709152.

The previous prime is 12055207. The next prime is 12055231. The reversal of 12055212 is 21255021.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12412 + ... + 13347.

Almost surely, 2^12055212 is an apocalyptic number.

12055212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12055212 is an abundant number, since it is smaller than the sum of its proper divisors (20763028).

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

12055212 is a wasteful number, since it uses less digits than its factorization.

12055212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25782 (or 25777 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 12055212 is about 3472.0616353976. The cubic root of 12055212 is about 229.2934333941.

The spelling of 12055212 in words is "twelve million, fifty-five thousand, two hundred twelve".