12021002123200 has 84 divisors (see below), whose sum is σ = 33804775287952. Its totient is φ = 4121486438400.

The previous prime is 12021002123183. The next prime is 12021002123231. The reversal of 12021002123200 is 232120012021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 536640681 + ... + 536663080.

Almost surely, 2^{12021002123200} is an apocalyptic number.

12021002123200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021002123200 is an abundant number, since it is smaller than the sum of its proper divisors (21783773164752).

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

12021002123200 is a wasteful number, since it uses less digits than its factorization.

12021002123200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073303790 (or 1073303775 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12021002123200 its reverse (232120012021), we get a palindrome (12253122135221).

The spelling of 12021002123200 in words is "twelve trillion, twenty-one billion, two million, one hundred twenty-three thousand, two hundred".