200001110002021 has 4 divisors (see below), whose sum is σ = 201981319012044. Its totient is φ = 198020900992000.

The previous prime is 200001110002003. The next prime is 200001110002039. The reversal of 200001110002021 is 120200011100002.

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

It is an interprime number because it is at equal distance from previous prime (200001110002003) and next prime (200001110002039).

It can be written as a sum of positive squares in 2 ways, for example, as 194789865677796 + 5211244324225 = 13956714^2 + 2282815^2 .

It is a cyclic number.

It is not a de Polignac number, because 200001110002021 - 2⁷ = 200001110001893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200001110001989 and 200001110002007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200001110002051) 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, 990104504860 + ... + 990104505061.

It is an arithmetic number, because the mean of its divisors is an integer number (50495329753011).

Almost surely, 2^{200001110002021} is an apocalyptic number.

It is an amenable number.

200001110002021 is a deficient number, since it is larger than the sum of its proper divisors (1980209010023).

200001110002021 is a wasteful number, since it uses less digits than its factorization.

200001110002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980209010022.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 200001110002021 its reverse (120200011100002), we get a palindrome (320201121102023).

The spelling of 200001110002021 in words is "two hundred trillion, one billion, one hundred ten million, two thousand, twenty-one".