200121122102202 has 72 divisors (see below), whose sum is σ = 530933589295200. Its totient is φ = 54168123271248.

The previous prime is 200121122102191. The next prime is 200121122102359. The reversal of 200121122102202 is 202201221121002.

It is a happy number.

200121122102202 is a `hidden beast` number, since 20 + 0 + 1 + 211 + 2 + 210 + 220 + 2 = 666.

It is a super-2 number, since 2×200121122102202² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5970896302 + ... + 5970929817.

It is an arithmetic number, because the mean of its divisors is an integer number (7374077629100).

Almost surely, 2^{200121122102202} is an apocalyptic number.

200121122102202 is an abundant number, since it is smaller than the sum of its proper divisors (330812467192998).

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

200121122102202 is a wasteful number, since it uses less digits than its factorization.

200121122102202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11941826160 (or 11941826150 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 200121122102202 its reverse (202201221121002), we get a palindrome (402322343223204).

The spelling of 200121122102202 in words is "two hundred trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred two thousand, two hundred two".