12012120011200 has 84 divisors (see below), whose sum is σ = 29568204170560. Its totient is φ = 4803079127040.

The previous prime is 12012120011179. The next prime is 12012120011249. The reversal of 12012120011200 is 211002121021.

It is a congruent number.

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, 2969824 + ... + 5730976.

Almost surely, 2^{12012120011200} is an apocalyptic number.

12012120011200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12012120011200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14784102085280).

12012120011200 is an abundant number, since it is smaller than the sum of its proper divisors (17556084159360).

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

12012120011200 is a wasteful number, since it uses less digits than its factorization.

12012120011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763894 (or 2763879 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12012120011200 its reverse (211002121021), we get a palindrome (12223122132221).

The spelling of 12012120011200 in words is "twelve trillion, twelve billion, one hundred twenty million, eleven thousand, two hundred".