12012002121200 has 60 divisors (see below), whose sum is σ = 29069483660160. Its totient is φ = 4769729287680.

The previous prime is 12012002121191. The next prime is 12012002121253. The reversal of 12012002121200 is 212120021021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109543760 + ... + 109653359.

It is an arithmetic number, because the mean of its divisors is an integer number (484491394336).

Almost surely, 2^{12012002121200} is an apocalyptic number.

12012002121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012002121200 is an abundant number, since it is smaller than the sum of its proper divisors (17057481538960).

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

12012002121200 is a wasteful number, since it uses less digits than its factorization.

12012002121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219197274 (or 219197263 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12012002121200 its reverse (212120021021), we get a palindrome (12224122142221).

The spelling of 12012002121200 in words is "twelve trillion, twelve billion, two million, one hundred twenty-one thousand, two hundred".