12001213220112 has 60 divisors (see below), whose sum is σ = 33900623368560. Its totient is φ = 3963017444544.

The previous prime is 12001213220071. The next prime is 12001213220147. The reversal of 12001213220112 is 21102231210021.

12001213220112 is a `hidden beast` number, since 120 + 0 + 1 + 213 + 220 + 112 = 666.

It is a super-3 number, since 3×12001213220112³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 389432062 + ... + 389462877.

It is an arithmetic number, because the mean of its divisors is an integer number (565010389476).

Almost surely, 2^{12001213220112} is an apocalyptic number.

12001213220112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12001213220112 is an abundant number, since it is smaller than the sum of its proper divisors (21899410148448).

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

12001213220112 is a wasteful number, since it uses less digits than its factorization.

12001213220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778895060 (or 778895051 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12001213220112 its reverse (21102231210021), we get a palindrome (33103444430133).

The spelling of 12001213220112 in words is "twelve trillion, one billion, two hundred thirteen million, two hundred twenty thousand, one hundred twelve".