202001212021 has 32 divisors (see below), whose sum is σ = 236380516352. Its totient is φ = 169053350400.

The previous prime is 202001212009. The next prime is 202001212027. The reversal of 202001212021 is 120212100202.

It is a happy number.

202001212021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 202001212021 - 2¹¹ = 202001209973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202001211992 and 202001212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202001212027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34485925 + ... + 34491781.

It is an arithmetic number, because the mean of its divisors is an integer number (7386891136).

Almost surely, 2^202001212021 is an apocalyptic number.

It is an amenable number.

202001212021 is a deficient number, since it is larger than the sum of its proper divisors (34379304331).

202001212021 is a wasteful number, since it uses less digits than its factorization.

202001212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6569.

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

Adding to 202001212021 its reverse (120212100202), we get a palindrome (322213312223).

The spelling of 202001212021 in words is "two hundred two billion, one million, two hundred twelve thousand, twenty-one".