121200021332300 has 72 divisors (see below), whose sum is σ = 267465834216000. Its totient is φ = 47657584294720.

The previous prime is 121200021332297. The next prime is 121200021332323. The reversal of 121200021332300 is 3233120002121.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 546813299 + ... + 547034901.

It is an arithmetic number, because the mean of its divisors is an integer number (3714803253000).

Almost surely, 2^{121200021332300} is an apocalyptic number.

121200021332300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121200021332300 is an abundant number, since it is smaller than the sum of its proper divisors (146265812883700).

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

121200021332300 is a wasteful number, since it uses less digits than its factorization.

121200021332300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314375 (or 314368 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 121200021332300 its reverse (3233120002121), we get a palindrome (124433141334421).

The spelling of 121200021332300 in words is "one hundred twenty-one trillion, two hundred billion, twenty-one million, three hundred thirty-two thousand, three hundred".