200021011210221 has 4 divisors (see below), whose sum is σ = 266694681613632. Its totient is φ = 133347340806812.

The previous prime is 200021011210213. The next prime is 200021011210277. The reversal of 200021011210221 is 122012110120002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200021011210221 - 2³ = 200021011210213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200021011210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021011210291) 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, 33336835201701 + ... + 33336835201706.

It is an arithmetic number, because the mean of its divisors is an integer number (66673670403408).

Almost surely, 2^{200021011210221} is an apocalyptic number.

It is an amenable number.

200021011210221 is a deficient number, since it is larger than the sum of its proper divisors (66673670403411).

200021011210221 is an equidigital number, since it uses as much as digits as its factorization.

200021011210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66673670403410.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 200021011210221 its reverse (122012110120002), we get a palindrome (322033121330223).

The spelling of 200021011210221 in words is "two hundred trillion, twenty-one billion, eleven million, two hundred ten thousand, two hundred twenty-one".