200121020330100 has 72 divisors (see below), whose sum is σ = 613076631709248. Its totient is φ = 50226452160000.

The previous prime is 200121020330093. The next prime is 200121020330167. The reversal of 200121020330100 is 1033020121002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 200121020330100.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 19619702776 + ... + 19619712975.

It is an arithmetic number, because the mean of its divisors is an integer number (8514953218184).

Almost surely, 2^{200121020330100} is an apocalyptic number.

200121020330100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200121020330100 is an abundant number, since it is smaller than the sum of its proper divisors (412955611379148).

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

200121020330100 is a wasteful number, since it uses less digits than its factorization.

200121020330100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39239415785 (or 39239415778 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 200121020330100 its reverse (1033020121002), we get a palindrome (201154040451102).

The spelling of 200121020330100 in words is "two hundred trillion, one hundred twenty-one billion, twenty million, three hundred thirty thousand, one hundred".