200121300210100 has 36 divisors (see below), whose sum is σ = 434278477248364. Its totient is φ = 80045707956480.

The previous prime is 200121300210067. The next prime is 200121300210109. The reversal of 200121300210100 is 1012003121002.

It can be written as a sum of positive squares in 6 ways, for example, as 101886086416 + 200019414123684 = 319196^2 + 14142822^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121300210109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32289657 + ... + 37985056.

Almost surely, 2^{200121300210100} is an apocalyptic number.

200121300210100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200121300210100 is an abundant number, since it is smaller than the sum of its proper divisors (234157177038264).

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

200121300210100 is a wasteful number, since it uses less digits than its factorization.

200121300210100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70303204 (or 70303197 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 200121300210100 its reverse (1012003121002), we get a palindrome (201133303331102).

The spelling of 200121300210100 in words is "two hundred trillion, one hundred twenty-one billion, three hundred million, two hundred ten thousand, one hundred".