200321010021 has 16 divisors (see below), whose sum is σ = 291508144128. Its totient is φ = 121351618800.

The previous prime is 200321010017. The next prime is 200321010023. The reversal of 200321010021 is 120010123002.

It is not a de Polignac number, because 200321010021 - 2² = 200321010017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200321009979 and 200321010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200321010023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1302415 + ... + 1448076.

It is an arithmetic number, because the mean of its divisors is an integer number (18219259008).

Almost surely, 2^200321010021 is an apocalyptic number.

It is an amenable number.

200321010021 is a deficient number, since it is larger than the sum of its proper divisors (91187134107).

200321010021 is a wasteful number, since it uses less digits than its factorization.

200321010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752712.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 200321010021 its reverse (120010123002), we get a palindrome (320331133023).

The spelling of 200321010021 in words is "two hundred billion, three hundred twenty-one million, ten thousand, twenty-one".