12001100012112 has 80 divisors (see below), whose sum is σ = 33062700726720. Its totient is φ = 3737964251136.

The previous prime is 12001100012093. The next prime is 12001100012131. The reversal of 12001100012112 is 21121000110021.

It is an interprime number because it is at equal distance from previous prime (12001100012093) and next prime (12001100012131).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 52790283 + ... + 53017130.

It is an arithmetic number, because the mean of its divisors is an integer number (413283759084).

Almost surely, 2^{12001100012112} is an apocalyptic number.

12001100012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12001100012112 is an abundant number, since it is smaller than the sum of its proper divisors (21061600714608).

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

12001100012112 is a wasteful number, since it uses less digits than its factorization.

12001100012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105807580 (or 105807574 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12001100012112 its reverse (21121000110021), we get a palindrome (33122100122133).

The spelling of 12001100012112 in words is "twelve trillion, one billion, one hundred million, twelve thousand, one hundred twelve".