202220332021 has 2 divisors, whose sum is σ = 202220332022. Its totient is φ = 202220332020.

The previous prime is 202220332007. The next prime is 202220332043. The reversal of 202220332021 is 120233022202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143253923121 + 58966408900 = 378489^2 + 242830^2 .

It is a cyclic number.

It is not a de Polignac number, because 202220332021 - 2¹¹ = 202220329973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202220332021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202220332051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101110166010 + 101110166011.

It is an arithmetic number, because the mean of its divisors is an integer number (101110166011).

Almost surely, 2^202220332021 is an apocalyptic number.

It is an amenable number.

202220332021 is a deficient number, since it is larger than the sum of its proper divisors (1).

202220332021 is an equidigital number, since it uses as much as digits as its factorization.

202220332021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 202220332021 its reverse (120233022202), we get a palindrome (322453354223).

The spelling of 202220332021 in words is "two hundred two billion, two hundred twenty million, three hundred thirty-two thousand, twenty-one".