202201012021 has 32 divisors (see below), whose sum is σ = 213795164160. Its totient is φ = 190991001600.

The previous prime is 202201011997. The next prime is 202201012081. The reversal of 202201012021 is 120210102202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 202201012021 - 2⁷ = 202201011893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202201011992 and 202201012010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202201012081) 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, 93567181 + ... + 93569341.

It is an arithmetic number, because the mean of its divisors is an integer number (6681098880).

Almost surely, 2^202201012021 is an apocalyptic number.

It is an amenable number.

202201012021 is a deficient number, since it is larger than the sum of its proper divisors (11594152139).

202201012021 is a wasteful number, since it uses less digits than its factorization.

202201012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677.

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

Adding to 202201012021 its reverse (120210102202), we get a palindrome (322411114223).

The spelling of 202201012021 in words is "two hundred two billion, two hundred one million, twelve thousand, twenty-one".