12220012 has 18 divisors (see below), whose sum is σ = 24876852. Its totient is φ = 5237064.

The previous prime is 12220003. The next prime is 12220031. The reversal of 12220012 is 21002221.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30978 + ... + 31369.

Almost surely, 2^12220012 is an apocalyptic number.

It is an amenable number.

12220012 is an abundant number, since it is smaller than the sum of its proper divisors (12656840).

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

12220012 is a wasteful number, since it uses less digits than its factorization.

12220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62365 (or 62356 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 12220012 is about 3495.7133749780. The cubic root of 12220012 is about 230.3335550988. Note that the first 3 decimals are identical.

Adding to 12220012 its reverse (21002221), we get a palindrome (33222233).

The spelling of 12220012 in words is "twelve million, two hundred twenty thousand, twelve".