12012320312200 has 96 divisors (see below), whose sum is σ = 31114140208200. Its totient is φ = 4282376232960.

The previous prime is 12012320312191. The next prime is 12012320312221. The reversal of 12012320312200 is 221302321021.

12012320312200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 6275491524 + 12006044820676 = 79218^2 + 3464974^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79581897 + ... + 79732696.

Almost surely, 2^{12012320312200} is an apocalyptic number.

12012320312200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012320312200 is an abundant number, since it is smaller than the sum of its proper divisors (19101819896000).

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

12012320312200 is a wasteful number, since it uses less digits than its factorization.

12012320312200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159314651 (or 159314642 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12012320312200 its reverse (221302321021), we get a palindrome (12233622633221).

The spelling of 12012320312200 in words is "twelve trillion, twelve billion, three hundred twenty million, three hundred twelve thousand, two hundred".