211105223 has 16 divisors (see below), whose sum is σ = 245846016. Its totient is φ = 177535680.

The previous prime is 211105207. The next prime is 211105229. The reversal of 211105223 is 322501112.

It is a happy number.

It is not a de Polignac number, because 211105223 - 2⁴ = 211105207 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 (211105229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114890 + ... + 116712.

It is an arithmetic number, because the mean of its divisors is an integer number (15365376).

Almost surely, 2^211105223 is an apocalyptic number.

211105223 is a deficient number, since it is larger than the sum of its proper divisors (34740793).

211105223 is a wasteful number, since it uses less digits than its factorization.

211105223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 211105223 is about 14529.4605199230. The cubic root of 211105223 is about 595.4331267142.

Adding to 211105223 its reverse (322501112), we get a palindrome (533606335).

The spelling of 211105223 in words is "two hundred eleven million, one hundred five thousand, two hundred twenty-three".