100221210211 has 4 divisors (see below), whose sum is σ = 101632776624. Its totient is φ = 98809643800.

The previous prime is 100221210197. The next prime is 100221210227. The reversal of 100221210211 is 112012122001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100221210211 - 2¹⁷ = 100221079139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100221210191 and 100221210200.

It is not an unprimeable number, because it can be changed into a prime (100221210251) 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, 705783100 + ... + 705783241.

It is an arithmetic number, because the mean of its divisors is an integer number (25408194156).

Almost surely, 2^100221210211 is an apocalyptic number.

100221210211 is a deficient number, since it is larger than the sum of its proper divisors (1411566413).

100221210211 is an equidigital number, since it uses as much as digits as its factorization.

100221210211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411566412.

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

Adding to 100221210211 its reverse (112012122001), we get a palindrome (212233332212).

The spelling of 100221210211 in words is "one hundred billion, two hundred twenty-one million, two hundred ten thousand, two hundred eleven".