2000001220209 has 20 divisors (see below), whose sum is σ = 2987705738160. Its totient is φ = 1333312013880.

The previous prime is 2000001220199. The next prime is 2000001220211. The reversal of 2000001220209 is 9020221000002.

It is not a de Polignac number, because 2000001220209 - 2²⁵ = 1999967665777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2000001220191 and 2000001220200.

It is not an unprimeable number, because it can be changed into a prime (2000001220219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5775454 + ... + 6111944.

It is an arithmetic number, because the mean of its divisors is an integer number (149385286908).

Almost surely, 2^{2000001220209} is an apocalyptic number.

It is an amenable number.

2000001220209 is a deficient number, since it is larger than the sum of its proper divisors (987704517951).

2000001220209 is an equidigital number, since it uses as much as digits as its factorization.

2000001220209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409882 (or 409873 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The spelling of 2000001220209 in words is "two trillion, one million, two hundred twenty thousand, two hundred nine".