200121122200 has 48 divisors (see below), whose sum is σ = 465357581280. Its totient is φ = 80035378560.

The previous prime is 200121122183. The next prime is 200121122249. The reversal of 200121122200 is 2221121002.

It is a happy number.

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, 1196097 + ... + 1353103.

It is an arithmetic number, because the mean of its divisors is an integer number (9694949610).

Almost surely, 2^200121122200 is an apocalyptic number.

200121122200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200121122200 is an abundant number, since it is smaller than the sum of its proper divisors (265236459080).

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

200121122200 is a wasteful number, since it uses less digits than its factorization.

200121122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163396 (or 163387 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200121122200 its reverse (2221121002), we get a palindrome (202342243202).

The spelling of 200121122200 in words is "two hundred billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred".