213112223 has 8 divisors (see below), whose sum is σ = 218319360. Its totient is φ = 207960480.

The previous prime is 213112177. The next prime is 213112247. The reversal of 213112223 is 322211312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213112223 - 2²⁰ = 212063647 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 (213112283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6008 + ... + 21501.

It is an arithmetic number, because the mean of its divisors is an integer number (27289920).

Almost surely, 2^213112223 is an apocalyptic number.

213112223 is a deficient number, since it is larger than the sum of its proper divisors (5207137).

213112223 is a wasteful number, since it uses less digits than its factorization.

213112223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27697.

The product of its digits is 144, while the sum is 17.

The square root of 213112223 is about 14598.3637096765. The cubic root of 213112223 is about 597.3141271596.

Adding to 213112223 its reverse (322211312), we get a palindrome (535323535).

The spelling of 213112223 in words is "two hundred thirteen million, one hundred twelve thousand, two hundred twenty-three".