210100202110221 has 4 divisors (see below), whose sum is σ = 280133602813632. Its totient is φ = 140066801406812.

The previous prime is 210100202110219. The next prime is 210100202110243. The reversal of 210100202110221 is 122011202001012.

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 210100202110221 - 2¹ = 210100202110219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210100202110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210100202110291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35016700351701 + ... + 35016700351706.

It is an arithmetic number, because the mean of its divisors is an integer number (70033400703408).

Almost surely, 2^{210100202110221} is an apocalyptic number.

It is an amenable number.

210100202110221 is a deficient number, since it is larger than the sum of its proper divisors (70033400703411).

210100202110221 is an equidigital number, since it uses as much as digits as its factorization.

210100202110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70033400703410.

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

Adding to 210100202110221 its reverse (122011202001012), we get a palindrome (332111404111233).

The spelling of 210100202110221 in words is "two hundred ten trillion, one hundred billion, two hundred two million, one hundred ten thousand, two hundred twenty-one".