12168000012 has 48 divisors (see below), whose sum is σ = 32455109120. Its totient is φ = 3475809792.

The previous prime is 12168000011. The next prime is 12168000059. The reversal of 12168000012 is 21000086121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12168000011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451164 + ... + 477372.

Almost surely, 2^12168000012 is an apocalyptic number.

12168000012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12168000012 is an abundant number, since it is smaller than the sum of its proper divisors (20287109108).

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

12168000012 is a wasteful number, since it uses less digits than its factorization.

12168000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31750 (or 31748 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 12168000012 its reverse (21000086121), we get a palindrome (33168086133).

The spelling of 12168000012 in words is "twelve billion, one hundred sixty-eight million, twelve", and thus it is an aban number.