202000012121 has 8 divisors (see below), whose sum is σ = 206071784640. Its totient is φ = 197949841168.

The previous prime is 202000012079. The next prime is 202000012139. The reversal of 202000012121 is 121210000202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202000012121 - 2²⁶ = 201932903257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202000012421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5381501 + ... + 5418906.

It is an arithmetic number, because the mean of its divisors is an integer number (25758973080).

Almost surely, 2^202000012121 is an apocalyptic number.

It is an amenable number.

202000012121 is a deficient number, since it is larger than the sum of its proper divisors (4071772519).

202000012121 is a wasteful number, since it uses less digits than its factorization.

202000012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10800783.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202000012121 its reverse (121210000202), we get a palindrome (323210012323).

The spelling of 202000012121 in words is "two hundred two billion, twelve thousand, one hundred twenty-one".