12001213112000 has 112 divisors (see below), whose sum is σ = 33966862183488. Its totient is φ = 4114701619200.

The previous prime is 12001213111991. The next prime is 12001213112027. The reversal of 12001213112000 is 21131210021.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 107097689 + ... + 107209688.

Almost surely, 2^{12001213112000} is an apocalyptic number.

12001213112000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001213112000 is an abundant number, since it is smaller than the sum of its proper divisors (21965649071488).

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

12001213112000 is an equidigital number, since it uses as much as digits as its factorization.

12001213112000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214307411 (or 214307391 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12001213112000 its reverse (21131210021), we get a palindrome (12022344322021).

The spelling of 12001213112000 in words is "twelve trillion, one billion, two hundred thirteen million, one hundred twelve thousand".