12001120110012 has 48 divisors (see below), whose sum is σ = 30548508423552. Its totient is φ = 3636678934080.

The previous prime is 12001120109893. The next prime is 12001120110017. The reversal of 12001120110012 is 21001102110021.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12001120110012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001120110017) 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, 38662258 + ... + 38971430.

It is an arithmetic number, because the mean of its divisors is an integer number (636427258824).

Almost surely, 2^{12001120110012} is an apocalyptic number.

12001120110012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12001120110012 is an abundant number, since it is smaller than the sum of its proper divisors (18547388313540).

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

12001120110012 is a wasteful number, since it uses less digits than its factorization.

12001120110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603258 (or 603256 counting only the distinct ones).

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

Adding to 12001120110012 its reverse (21001102110021), we get a palindrome (33002222220033).

Subtracting 12001120110012 from its reverse (21001102110021), we obtain a square (8999982000009 = 2999997²).

The spelling of 12001120110012 in words is "twelve trillion, one billion, one hundred twenty million, one hundred ten thousand, twelve".