200121111020202 has 16 divisors (see below), whose sum is σ = 400662203397120. Its totient is φ = 66637040113952.

The previous prime is 200121111020179. The next prime is 200121111020209. The reversal of 200121111020202 is 202020111121002.

It is not an unprimeable number, because it can be changed into a prime (200121111020209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17499217002 + ... + 17499228437.

It is an arithmetic number, because the mean of its divisors is an integer number (25041387712320).

Almost surely, 2^{200121111020202} is an apocalyptic number.

200121111020202 is an abundant number, since it is smaller than the sum of its proper divisors (200541092376918).

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

200121111020202 is a wasteful number, since it uses less digits than its factorization.

200121111020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34998446397.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 200121111020202 its reverse (202020111121002), we get a palindrome (402141222141204).

The spelling of 200121111020202 in words is "two hundred trillion, one hundred twenty-one billion, one hundred eleven million, twenty thousand, two hundred two".