200210001101221 has 4 divisors (see below), whose sum is σ = 200485393125472. Its totient is φ = 199934609076972.

The previous prime is 200210001101177. The next prime is 200210001101273. The reversal of 200210001101221 is 122101100012002.

200210001101221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 200210001101221 - 2²⁹ = 200209464230309 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 (200210001101521) 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, 137696011035 + ... + 137696012488.

It is an arithmetic number, because the mean of its divisors is an integer number (50121348281368).

Almost surely, 2^{200210001101221} is an apocalyptic number.

It is an amenable number.

200210001101221 is a deficient number, since it is larger than the sum of its proper divisors (275392024251).

200210001101221 is an equidigital number, since it uses as much as digits as its factorization.

200210001101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275392024250.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 200210001101221 its reverse (122101100012002), we get a palindrome (322311101113223).

The spelling of 200210001101221 in words is "two hundred trillion, two hundred ten billion, one million, one hundred one thousand, two hundred twenty-one".