200200200021 has 8 divisors (see below), whose sum is σ = 296592888960. Its totient is φ = 133466799996.

The previous prime is 200200199911. The next prime is 200200200037. The reversal of 200200200021 is 120002002002.

It is not a de Polignac number, because 200200200021 - 2²² = 200196005717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 200200199976 and 200200200012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200200200091) 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 7 ways as a sum of consecutive naturals, for example, 3707411085 + ... + 3707411138.

It is an arithmetic number, because the mean of its divisors is an integer number (37074111120).

Almost surely, 2^200200200021 is an apocalyptic number.

It is an amenable number.

200200200021 is a deficient number, since it is larger than the sum of its proper divisors (96392688939).

200200200021 is an equidigital number, since it uses as much as digits as its factorization.

200200200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7414822232 (or 7414822226 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 200200200021 its reverse (120002002002), we get a palindrome (320202202023).

The spelling of 200200200021 in words is "two hundred billion, two hundred million, two hundred thousand, twenty-one".