212232120211 has 4 divisors (see below), whose sum is σ = 212792099800. Its totient is φ = 211672140624.

The previous prime is 212232120197. The next prime is 212232120283. The reversal of 212232120211 is 112021232212.

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 212232120211 - 2¹⁵ = 212232087443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212232120811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279989226 + ... + 279989983.

It is an arithmetic number, because the mean of its divisors is an integer number (53198024950).

Almost surely, 2^212232120211 is an apocalyptic number.

212232120211 is a deficient number, since it is larger than the sum of its proper divisors (559979589).

212232120211 is an equidigital number, since it uses as much as digits as its factorization.

212232120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559979588.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 212232120211 its reverse (112021232212), we get a palindrome (324253352423).

The spelling of 212232120211 in words is "two hundred twelve billion, two hundred thirty-two million, one hundred twenty thousand, two hundred eleven".