202001000202121 has 16 divisors (see below), whose sum is σ = 204504674875200. Its totient is φ = 199499003083008.

The previous prime is 202001000202073. The next prime is 202001000202139. The reversal of 202001000202121 is 121202000100202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 202001000202121 - 2⁴⁷ = 61263511846793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202001000242121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3127935010 + ... + 3127999588.

It is an arithmetic number, because the mean of its divisors is an integer number (12781542179700).

Almost surely, 2^{202001000202121} is an apocalyptic number.

It is an amenable number.

202001000202121 is a deficient number, since it is larger than the sum of its proper divisors (2503674673079).

202001000202121 is an equidigital number, since it uses as much as digits as its factorization.

202001000202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76968.

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

Adding to 202001000202121 its reverse (121202000100202), we get a palindrome (323203000302323).

The spelling of 202001000202121 in words is "two hundred two trillion, one billion, two hundred two thousand, one hundred twenty-one".