2000001100021 has 4 divisors (see below), whose sum is σ = 2005223035392. Its totient is φ = 1994779164652.

The previous prime is 2000001100001. The next prime is 2000001100049. The reversal of 2000001100021 is 1200011000002.

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 2000001100021 - 2²⁹ = 1999464229109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2000001099977 and 2000001100013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000001100001) 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 3 ways as a sum of consecutive naturals, for example, 2610967111 + ... + 2610967876.

It is an arithmetic number, because the mean of its divisors is an integer number (501305758848).

Almost surely, 2^{2000001100021} is an apocalyptic number.

It is an amenable number.

2000001100021 is a deficient number, since it is larger than the sum of its proper divisors (5221935371).

2000001100021 is an equidigital number, since it uses as much as digits as its factorization.

2000001100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5221935370.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 2000001100021 its reverse (1200011000002), we get a palindrome (3200012100023).

The spelling of 2000001100021 in words is "two trillion, one million, one hundred thousand, twenty-one".