200211121200021 has 16 divisors (see below), whose sum is σ = 274682271029760. Its totient is φ = 129641708190960.

The previous prime is 200211121199989. The next prime is 200211121200023. The reversal of 200211121200021 is 120002121112002.

It is not a de Polignac number, because 200211121200021 - 2⁵ = 200211121199989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200211121200023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4335240025 + ... + 4335286206.

It is an arithmetic number, because the mean of its divisors is an integer number (17167641939360).

Almost surely, 2^{200211121200021} is an apocalyptic number.

It is an amenable number.

200211121200021 is a deficient number, since it is larger than the sum of its proper divisors (74471149829739).

200211121200021 is a wasteful number, since it uses less digits than its factorization.

200211121200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8670526456.

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

Adding to 200211121200021 its reverse (120002121112002), we get a palindrome (320213242312023).

The spelling of 200211121200021 in words is "two hundred trillion, two hundred eleven billion, one hundred twenty-one million, two hundred thousand, twenty-one".