100221331211 has 2 divisors, whose sum is σ = 100221331212. Its totient is φ = 100221331210.

The previous prime is 100221331201. The next prime is 100221331241. The reversal of 100221331211 is 112133122001.

It is a weak prime.

It is an emirp because it is prime and its reverse (112133122001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100221331211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100221331211.

It is not a weakly prime, because it can be changed into another prime (100221331201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50110665605 + 50110665606.

It is an arithmetic number, because the mean of its divisors is an integer number (50110665606).

Almost surely, 2^100221331211 is an apocalyptic number.

100221331211 is a deficient number, since it is larger than the sum of its proper divisors (1).

100221331211 is an equidigital number, since it uses as much as digits as its factorization.

100221331211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 100221331211 its reverse (112133122001), we get a palindrome (212354453212).

The spelling of 100221331211 in words is "one hundred billion, two hundred twenty-one million, three hundred thirty-one thousand, two hundred eleven".