12208995612 has 36 divisors (see below), whose sum is σ = 33667231416. Its totient is φ = 3699695520.

The previous prime is 12208995599. The next prime is 12208995619. The reversal of 12208995612 is 21659980221.

It is a happy number.

12208995612 is a `hidden beast` number, since 1 + 2 + 2 + 0 + 89 + 9 + 561 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12208995619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15415003 + ... + 15415794.

Almost surely, 2^12208995612 is an apocalyptic number.

12208995612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12208995612 is an abundant number, since it is smaller than the sum of its proper divisors (21458235804).

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

12208995612 is a wasteful number, since it uses less digits than its factorization.

12208995612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30830818 (or 30830813 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 12208995612 in words is "twelve billion, two hundred eight million, nine hundred ninety-five thousand, six hundred twelve".