211223110133 has 12 divisors (see below), whose sum is σ = 246221504640. Its totient is φ = 180670388472.

The previous prime is 211223110099. The next prime is 211223110141. The reversal of 211223110133 is 331011322112.

It is a happy number.

It is not a de Polignac number, because 211223110133 - 2¹⁴ = 211223093749 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 (211223110183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4476191 + ... + 4523132.

It is an arithmetic number, because the mean of its divisors is an integer number (20518458720).

Almost surely, 2^211223110133 is an apocalyptic number.

It is an amenable number.

211223110133 is a deficient number, since it is larger than the sum of its proper divisors (34998394507).

211223110133 is an equidigital number, since it uses as much as digits as its factorization.

211223110133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8999816 (or 8999809 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 211223110133 its reverse (331011322112), we get a palindrome (542234432245).

The spelling of 211223110133 in words is "two hundred eleven billion, two hundred twenty-three million, one hundred ten thousand, one hundred thirty-three".