211132223 has 2 divisors, whose sum is σ = 211132224. Its totient is φ = 211132222.

The previous prime is 211132219. The next prime is 211132253. The reversal of 211132223 is 322231112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211132223 - 2² = 211132219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211132253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105566111 + 105566112.

It is an arithmetic number, because the mean of its divisors is an integer number (105566112).

Almost surely, 2^211132223 is an apocalyptic number.

211132223 is a deficient number, since it is larger than the sum of its proper divisors (1).

211132223 is an equidigital number, since it uses as much as digits as its factorization.

211132223 is an evil number, because the sum of its binary digits is even.

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

The square root of 211132223 is about 14530.3896368955. The cubic root of 211132223 is about 595.4585105944.

Adding to 211132223 its reverse (322231112), we get a palindrome (533363335).

The spelling of 211132223 in words is "two hundred eleven million, one hundred thirty-two thousand, two hundred twenty-three".