202000111002121 has 16 divisors (see below), whose sum is σ = 214187192006400. Its totient is φ = 189846924726528.

The previous prime is 202000111002089. The next prime is 202000111002143. The reversal of 202000111002121 is 121200111000202.

It is not a de Polignac number, because 202000111002121 - 2⁵ = 202000111002089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202000111002821) 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, 177488160 + ... + 178622638.

It is an arithmetic number, because the mean of its divisors is an integer number (13386699500400).

Almost surely, 2^{202000111002121} is an apocalyptic number.

It is an amenable number.

202000111002121 is a deficient number, since it is larger than the sum of its proper divisors (12187081004279).

202000111002121 is a wasteful number, since it uses less digits than its factorization.

202000111002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149408.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 202000111002121 its reverse (121200111000202), we get a palindrome (323200222002323).

The spelling of 202000111002121 in words is "two hundred two trillion, one hundred eleven million, two thousand, one hundred twenty-one".