200121120200 has 96 divisors (see below), whose sum is σ = 493128660960. Its totient is φ = 75266688000.

The previous prime is 200121120181. The next prime is 200121120211. The reversal of 200121120200 is 2021121002.

It is a happy number.

200121120200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 3545399 + ... + 3601401.

It is an arithmetic number, because the mean of its divisors is an integer number (5136756885).

Almost surely, 2^200121120200 is an apocalyptic number.

200121120200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200121120200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246564330480).

200121120200 is an abundant number, since it is smaller than the sum of its proper divisors (293007540760).

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

200121120200 is a wasteful number, since it uses less digits than its factorization.

200121120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57087 (or 57078 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200121120200 its reverse (2021121002), we get a palindrome (202142241202).

The spelling of 200121120200 in words is "two hundred billion, one hundred twenty-one million, one hundred twenty thousand, two hundred".