202000020202121 has 16 divisors (see below), whose sum is σ = 204547156070400. Its totient is φ = 199463726760000.

The previous prime is 202000020202111. The next prime is 202000020202133. The reversal of 202000020202121 is 121202020000202.

It is a cyclic number.

It is not a de Polignac number, because 202000020202121 - 2¹⁴ = 202000020185737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 202000020202096 and 202000020202105.

It is not an unprimeable number, because it can be changed into a prime (202000020202111) 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, 359252720 + ... + 359814558.

It is an arithmetic number, because the mean of its divisors is an integer number (12784197254400).

Almost surely, 2^{202000020202121} is an apocalyptic number.

It is an amenable number.

202000020202121 is a deficient number, since it is larger than the sum of its proper divisors (2547135868279).

202000020202121 is a wasteful number, since it uses less digits than its factorization.

202000020202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571480.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202000020202121 its reverse (121202020000202), we get a palindrome (323202040202323).

The spelling of 202000020202121 in words is "two hundred two trillion, twenty million, two hundred two thousand, one hundred twenty-one".