12021020121200 has 120 divisors (see below), whose sum is σ = 29716761996576. Its totient is φ = 4670972800000.

The previous prime is 12021020121109. The next prime is 12021020121211. The reversal of 12021020121200 is 212102012021.

12021020121200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 665876 + ... + 4948275.

Almost surely, 2^{12021020121200} is an apocalyptic number.

12021020121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021020121200 is an abundant number, since it is smaller than the sum of its proper divisors (17695741875376).

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

12021020121200 is a wasteful number, since it uses less digits than its factorization.

12021020121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5614323 (or 5614312 counting only the distinct ones).

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

Adding to 12021020121200 its reverse (212102012021), we get a palindrome (12233122133221).

The spelling of 12021020121200 in words is "twelve trillion, twenty-one billion, twenty million, one hundred twenty-one thousand, two hundred".