210100110221 has 4 divisors (see below), whose sum is σ = 222458940252. Its totient is φ = 197741280192.

The previous prime is 210100110197. The next prime is 210100110277. The reversal of 210100110221 is 122011001012.

210100110221 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.

It can be written as a sum of positive squares in 2 ways, for example, as 92728776196 + 117371334025 = 304514^2 + 342595^2 .

It is a cyclic number.

It is not a de Polignac number, because 210100110221 - 2¹⁴ = 210100093837 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 (210100110721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6179414990 + ... + 6179415023.

It is an arithmetic number, because the mean of its divisors is an integer number (55614735063).

Almost surely, 2^210100110221 is an apocalyptic number.

It is an amenable number.

210100110221 is a deficient number, since it is larger than the sum of its proper divisors (12358830031).

210100110221 is a wasteful number, since it uses less digits than its factorization.

210100110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12358830030.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210100110221 its reverse (122011001012), we get a palindrome (332111111233).

The spelling of 210100110221 in words is "two hundred ten billion, one hundred million, one hundred ten thousand, two hundred twenty-one".