212120332311 has 4 divisors (see below), whose sum is σ = 282827109752. Its totient is φ = 141413554872.

The previous prime is 212120332267. The next prime is 212120332393. The reversal of 212120332311 is 113233021212.

212120332311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 212120332311 - 2¹⁹ = 212119808023 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 (212120332511) 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 3 ways as a sum of consecutive naturals, for example, 35353388716 + ... + 35353388721.

It is an arithmetic number, because the mean of its divisors is an integer number (70706777438).

Almost surely, 2^212120332311 is an apocalyptic number.

212120332311 is a deficient number, since it is larger than the sum of its proper divisors (70706777441).

212120332311 is an equidigital number, since it uses as much as digits as its factorization.

212120332311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70706777440.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 212120332311 its reverse (113233021212), we get a palindrome (325353353523).

The spelling of 212120332311 in words is "two hundred twelve billion, one hundred twenty million, three hundred thirty-two thousand, three hundred eleven".