200021020100221 has 8 divisors (see below), whose sum is σ = 201126823788800. Its totient is φ = 198915224271120.

The previous prime is 200021020100207. The next prime is 200021020100227. The reversal of 200021020100221 is 122001020120002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200021020100221 - 2¹⁷ = 200021019969149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021020100227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53370760 + ... + 56995438.

It is an arithmetic number, because the mean of its divisors is an integer number (25140852973600).

Almost surely, 2^{200021020100221} is an apocalyptic number.

It is an amenable number.

200021020100221 is a deficient number, since it is larger than the sum of its proper divisors (1105803688579).

200021020100221 is a wasteful number, since it uses less digits than its factorization.

200021020100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3929739.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200021020100221 its reverse (122001020120002), we get a palindrome (322022040220223).

The spelling of 200021020100221 in words is "two hundred trillion, twenty-one billion, twenty million, one hundred thousand, two hundred twenty-one".