202002001001 has 4 divisors (see below), whose sum is σ = 202036437072. Its totient is φ = 201967564932.

The previous prime is 202002000947. The next prime is 202002001043. The reversal of 202002001001 is 100100200202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202002001001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202002001001.

It is not an unprimeable number, because it can be changed into a prime (202002000001) 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 3 ways as a sum of consecutive naturals, for example, 17209235 + ... + 17220968.

It is an arithmetic number, because the mean of its divisors is an integer number (50509109268).

Almost surely, 2^202002001001 is an apocalyptic number.

It is an amenable number.

202002001001 is a deficient number, since it is larger than the sum of its proper divisors (34436071).

202002001001 is an equidigital number, since it uses as much as digits as its factorization.

202002001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34436070.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 202002001001 its reverse (100100200202), we get a palindrome (302102201203).

The spelling of 202002001001 in words is "two hundred two billion, two million, one thousand, one".