200210100002021 has 4 divisors (see below), whose sum is σ = 205093273172844. Its totient is φ = 195326926831200.

The previous prime is 200210100001999. The next prime is 200210100002027. The reversal of 200210100002021 is 120200001012002.

It is a happy number.

200210100002021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 28458223890625 + 171751876111396 = 5334625^2 + 13105414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200210100002021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200210100001993 and 200210100002011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200210100002027) 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, 2441586585350 + ... + 2441586585431.

It is an arithmetic number, because the mean of its divisors is an integer number (51273318293211).

Almost surely, 2^{200210100002021} is an apocalyptic number.

It is an amenable number.

200210100002021 is a deficient number, since it is larger than the sum of its proper divisors (4883173170823).

200210100002021 is an equidigital number, since it uses as much as digits as its factorization.

200210100002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4883173170822.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200210100002021 its reverse (120200001012002), we get a palindrome (320410101014023).

The spelling of 200210100002021 in words is "two hundred trillion, two hundred ten billion, one hundred million, two thousand, twenty-one".