200121221200211 has 12 divisors (see below), whose sum is σ = 204884916151608. Its totient is φ = 195465826450944.

The previous prime is 200121221200157. The next prime is 200121221200261. The reversal of 200121221200211 is 112002122121002.

It is not a de Polignac number, because 200121221200211 - 2¹⁰ = 200121221199187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200121221200211.

It is not an unprimeable number, because it can be changed into a prime (200121221200261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 331710611 + ... + 332313363.

It is an arithmetic number, because the mean of its divisors is an integer number (17073743012634).

Almost surely, 2^{200121221200211} is an apocalyptic number.

200121221200211 is a deficient number, since it is larger than the sum of its proper divisors (4763694951397).

200121221200211 is an equidigital number, since it uses as much as digits as its factorization.

200121221200211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782402 (or 782359 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 200121221200211 its reverse (112002122121002), we get a palindrome (312123343321213).

The spelling of 200121221200211 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred thousand, two hundred eleven".