12012113121200 has 60 divisors (see below), whose sum is σ = 28859571323088. Its totient is φ = 4804767072000.

The previous prime is 12012113121191. The next prime is 12012113121221. The reversal of 12012113121200 is 212131121021.

It is a happy 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, 28632149 + ... + 29048651.

Almost surely, 2^{12012113121200} is an apocalyptic number.

12012113121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012113121200 is an abundant number, since it is smaller than the sum of its proper divisors (16847458201888).

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

12012113121200 is a wasteful number, since it uses less digits than its factorization.

12012113121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488622 (or 488611 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12012113121200 its reverse (212131121021), we get a palindrome (12224244242221).

The spelling of 12012113121200 in words is "twelve trillion, twelve billion, one hundred thirteen million, one hundred twenty-one thousand, two hundred".