100221223 has 2 divisors, whose sum is σ = 100221224. Its totient is φ = 100221222.

The previous prime is 100221221. The next prime is 100221227. The reversal of 100221223 is 322122001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100221223 - 2¹ = 100221221 is a prime.

Together with 100221221, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100221221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50110611 + 50110612.

It is an arithmetic number, because the mean of its divisors is an integer number (50110612).

Almost surely, 2^100221223 is an apocalyptic number.

100221223 is a deficient number, since it is larger than the sum of its proper divisors (1).

100221223 is an equidigital number, since it uses as much as digits as its factorization.

100221223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 100221223 is about 10011.0550393053. The cubic root of 100221223 is about 464.5009066759.

Adding to 100221223 its reverse (322122001), we get a palindrome (422343224).

The spelling of 100221223 in words is "one hundred million, two hundred twenty-one thousand, two hundred twenty-three".