202220002001 has 6 divisors (see below), whose sum is σ = 208953655506. Its totient is φ = 195696775200.

The previous prime is 202220001989. The next prime is 202220002007. The reversal of 202220002001 is 100200022202.

It can be written as a sum of positive squares in only one way, i.e., 193885224976 + 8334777025 = 440324^2 + 91295^2 .

It is not a de Polignac number, because 202220002001 - 2¹⁰ = 202220000977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202220002007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 105212360 + ... + 105214281.

It is an arithmetic number, because the mean of its divisors is an integer number (34825609251).

Almost surely, 2^202220002001 is an apocalyptic number.

It is an amenable number.

202220002001 is a deficient number, since it is larger than the sum of its proper divisors (6733653505).

202220002001 is an equidigital number, since it uses as much as digits as its factorization.

202220002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210426703 (or 210426672 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 202220002001 its reverse (100200022202), we get a palindrome (302420024203).

The spelling of 202220002001 in words is "two hundred two billion, two hundred twenty million, two thousand, one".