20002002200001 has 12 divisors (see below), whose sum is σ = 29287558777828. Its totient is φ = 13152001446144.

The previous prime is 20002002199999. The next prime is 20002002200027. The reversal of 20002002200001 is 10000220020002.

It can be written as a sum of positive squares in 2 ways, for example, as 3645445583025 + 16356556616976 = 1909305^2 + 4044324^2 .

It is not a de Polignac number, because 20002002200001 - 2¹ = 20002002199999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20002002200101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15222223240 + ... + 15222224553.

Almost surely, 2^{20002002200001} is an apocalyptic number.

It is an amenable number.

20002002200001 is a deficient number, since it is larger than the sum of its proper divisors (9285556577827).

20002002200001 is a wasteful number, since it uses less digits than its factorization.

20002002200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30444447872 (or 30444447869 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20002002200001 its reverse (10000220020002), we get a palindrome (30002222220003).

The spelling of 20002002200001 in words is "twenty trillion, two billion, two million, two hundred thousand, one".