200200021021 has 24 divisors (see below), whose sum is σ = 270276969024. Its totient is φ = 144000005760.

The previous prime is 200200021013. The next prime is 200200021031. The reversal of 200200021021 is 120120002002.

It is not a de Polignac number, because 200200021021 - 2³ = 200200021013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200200020989 and 200200021007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200200021031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7679296 + ... + 7705321.

It is an arithmetic number, because the mean of its divisors is an integer number (11261540376).

Almost surely, 2^200200021021 is an apocalyptic number.

It is an amenable number.

200200021021 is a deficient number, since it is larger than the sum of its proper divisors (70076948003).

200200021021 is a wasteful number, since it uses less digits than its factorization.

200200021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15384661 (or 15384648 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 200200021021 its reverse (120120002002), we get a palindrome (320320023023).

The spelling of 200200021021 in words is "two hundred billion, two hundred million, twenty-one thousand, twenty-one".