211223032211 has 4 divisors (see below), whose sum is σ = 211286219232. Its totient is φ = 211159845192.

The previous prime is 211223032183. The next prime is 211223032213. The reversal of 211223032211 is 112230322112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211223032211 - 2²⁶ = 211155923347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211223032213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31588496 + ... + 31595181.

It is an arithmetic number, because the mean of its divisors is an integer number (52821554808).

Almost surely, 2^211223032211 is an apocalyptic number.

211223032211 is a deficient number, since it is larger than the sum of its proper divisors (63187021).

211223032211 is an equidigital number, since it uses as much as digits as its factorization.

211223032211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63187020.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 211223032211 its reverse (112230322112), we get a palindrome (323453354323).

It can be divided in two parts, 2 and 11223032211, that multiplied together give a palindrome (22446064422).

The spelling of 211223032211 in words is "two hundred eleven billion, two hundred twenty-three million, thirty-two thousand, two hundred eleven".