2000002021109 has 4 divisors (see below), whose sum is σ = 2019804021420. Its totient is φ = 1980200020800.

The previous prime is 2000002021091. The next prime is 2000002021117. The reversal of 2000002021109 is 9011202000002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 806544094084 + 1193457927025 = 898078^2 + 1092455^2 .

It is not a de Polignac number, because 2000002021109 - 2⁴⁰ = 900490393333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000002021139) 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, 9901000004 + ... + 9901000205.

It is an arithmetic number, because the mean of its divisors is an integer number (504951005355).

Almost surely, 2^{2000002021109} is an apocalyptic number.

It is an amenable number.

2000002021109 is a deficient number, since it is larger than the sum of its proper divisors (19802000311).

2000002021109 is a wasteful number, since it uses less digits than its factorization.

2000002021109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19802000310.

The product of its (nonzero) digits is 72, while the sum is 17.

The spelling of 2000002021109 in words is "two trillion, two million, twenty-one thousand, one hundred nine".