210121333300 has 18 divisors (see below), whose sum is σ = 455963293478. Its totient is φ = 84048533280.

The previous prime is 210121333291. The next prime is 210121333319. The reversal of 210121333300 is 3333121012.

It can be written as a sum of positive squares in 3 ways, for example, as 4228640784 + 205892692516 = 65028^2 + 453754^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1050606567 + ... + 1050606766.

Almost surely, 2^210121333300 is an apocalyptic number.

210121333300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210121333300 is an abundant number, since it is smaller than the sum of its proper divisors (245841960178).

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

210121333300 is a wasteful number, since it uses less digits than its factorization.

210121333300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101213347 (or 2101213340 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 210121333300 its reverse (3333121012), we get a palindrome (213454454312).

The spelling of 210121333300 in words is "two hundred ten billion, one hundred twenty-one million, three hundred thirty-three thousand, three hundred".