2121333031200 has 72 divisors (see below), whose sum is σ = 6904939024368. Its totient is φ = 565688807680.

The previous prime is 2121333031193. The next prime is 2121333031217. The reversal of 2121333031200 is 21303331212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 441941982 + ... + 441946781.

It is an arithmetic number, because the mean of its divisors is an integer number (95901930894).

Almost surely, 2^{2121333031200} is an apocalyptic number.

2121333031200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121333031200 is an abundant number, since it is smaller than the sum of its proper divisors (4783605993168).

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

2121333031200 is a wasteful number, since it uses less digits than its factorization.

2121333031200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883888786 (or 883888773 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 2121333031200 its reverse (21303331212), we get a palindrome (2142636362412).

The spelling of 2121333031200 in words is "two trillion, one hundred twenty-one billion, three hundred thirty-three million, thirty-one thousand, two hundred".