202012200121 has 8 divisors (see below), whose sum is σ = 212893728320. Its totient is φ = 191155602672.

The previous prime is 202012200031. The next prime is 202012200127. The reversal of 202012200121 is 121002210202.

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 202012200121 - 2²⁵ = 201978645689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202012200127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6216045 + ... + 6248458.

It is an arithmetic number, because the mean of its divisors is an integer number (26611716040).

Almost surely, 2^202012200121 is an apocalyptic number.

It is an amenable number.

202012200121 is a deficient number, since it is larger than the sum of its proper divisors (10881528199).

202012200121 is a wasteful number, since it uses less digits than its factorization.

202012200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12465375.

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

Adding to 202012200121 its reverse (121002210202), we get a palindrome (323014410323).

The spelling of 202012200121 in words is "two hundred two billion, twelve million, two hundred thousand, one hundred twenty-one".