12001112010120 has 128 divisors (see below), whose sum is σ = 36094222080000. Its totient is φ = 3192224152320.

The previous prime is 12001112010109. The next prime is 12001112010127. The reversal of 12001112010120 is 2101021110021.

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

It is a junction number, because it is equal to n+sod(n) for n = 12001112010096 and 12001112010105.

It is not an unprimeable number, because it can be changed into a prime (12001112010127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123624561 + ... + 123721599.

It is an arithmetic number, because the mean of its divisors is an integer number (281986110000).

Almost surely, 2^{12001112010120} is an apocalyptic number.

12001112010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001112010120 is an abundant number, since it is smaller than the sum of its proper divisors (24093110069880).

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

12001112010120 is a wasteful number, since it uses less digits than its factorization.

12001112010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99643 (or 99639 counting only the distinct ones).

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

Adding to 12001112010120 its reverse (2101021110021), we get a palindrome (14102133120141).

Subtracting from 12001112010120 its reverse (2101021110021), we obtain a palindrome (9900090900099).

The spelling of 12001112010120 in words is "twelve trillion, one billion, one hundred twelve million, ten thousand, one hundred twenty".