2121200033300 has 36 divisors (see below), whose sum is σ = 4605697833660. Its totient is φ = 847983467520.

The previous prime is 2121200033279. The next prime is 2121200033371. The reversal of 2121200033300 is 33300021212.

It can be written as a sum of positive squares in 6 ways, for example, as 631789701904 + 1489410331396 = 794852^2 + 1220414^2 .

It is a super-2 number, since 2×2121200033300² (a number of 25 digits) contains 22 as substring.

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, 6035069 + ... + 6376868.

It is an arithmetic number, because the mean of its divisors is an integer number (127936050935).

Almost surely, 2^{2121200033300} is an apocalyptic number.

2121200033300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121200033300 is an abundant number, since it is smaller than the sum of its proper divisors (2484497800360).

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

2121200033300 is a wasteful number, since it uses less digits than its factorization.

2121200033300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12413660 (or 12413653 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 2121200033300 its reverse (33300021212), we get a palindrome (2154500054512).

The spelling of 2121200033300 in words is "two trillion, one hundred twenty-one billion, two hundred million, thirty-three thousand, three hundred".