202000122021 has 32 divisors (see below), whose sum is σ = 284093516160. Its totient is φ = 127472893184.

The previous prime is 202000122019. The next prime is 202000122029. The reversal of 202000122021 is 120221000202.

It is not a de Polignac number, because 202000122021 - 2¹ = 202000122019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202000121988 and 202000122006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202000122029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6314950 + ... + 6346856.

It is an arithmetic number, because the mean of its divisors is an integer number (8877922380).

Almost surely, 2^202000122021 is an apocalyptic number.

It is an amenable number.

202000122021 is a deficient number, since it is larger than the sum of its proper divisors (82093394139).

202000122021 is a wasteful number, since it uses less digits than its factorization.

202000122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33365.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 202000122021 its reverse (120221000202), we get a palindrome (322221122223).

The spelling of 202000122021 in words is "two hundred two billion, one hundred twenty-two thousand, twenty-one".