202020100001 has 4 divisors (see below), whose sum is σ = 202026035904. Its totient is φ = 202014164100.

The previous prime is 202020099943. The next prime is 202020100019. The reversal of 202020100001 is 100001020202.

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 not a de Polignac number, because 202020100001 - 2²⁶ = 201952991137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202020100091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2916605 + ... + 2985066.

It is an arithmetic number, because the mean of its divisors is an integer number (50506508976).

Almost surely, 2^202020100001 is an apocalyptic number.

It is an amenable number.

202020100001 is a deficient number, since it is larger than the sum of its proper divisors (5935903).

202020100001 is an equidigital number, since it uses as much as digits as its factorization.

202020100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5935902.

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

Adding to 202020100001 its reverse (100001020202), we get a palindrome (302021120203).

The spelling of 202020100001 in words is "two hundred two billion, twenty million, one hundred thousand, one".