211223133211 has 8 divisors (see below), whose sum is σ = 211504435200. Its totient is φ = 210941939688.

The previous prime is 211223133181. The next prime is 211223133223. The reversal of 211223133211 is 112331322112.

211223133211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 211223133211 - 2²⁷ = 211088915483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211223131211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4328430 + ... + 4376956.

It is an arithmetic number, because the mean of its divisors is an integer number (26438054400).

Almost surely, 2^211223133211 is an apocalyptic number.

211223133211 is a deficient number, since it is larger than the sum of its proper divisors (281301989).

211223133211 is an equidigital number, since it uses as much as digits as its factorization.

211223133211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54233.

The product of its digits is 432, while the sum is 22.

Adding to 211223133211 its reverse (112331322112), we get a palindrome (323554455323).

The spelling of 211223133211 in words is "two hundred eleven billion, two hundred twenty-three million, one hundred thirty-three thousand, two hundred eleven".