312332122211 has 4 divisors (see below), whose sum is σ = 316095159912. Its totient is φ = 308569084512.

The previous prime is 312332122187. The next prime is 312332122217. The reversal of 312332122211 is 112221233213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112221233213 = 29 ⋅3869697697.

It is a cyclic number.

It is not a de Polignac number, because 312332122211 - 2¹⁰ = 312332121187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312332122217) 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, 1881518726 + ... + 1881518891.

It is an arithmetic number, because the mean of its divisors is an integer number (79023789978).

Almost surely, 2^312332122211 is an apocalyptic number.

312332122211 is a deficient number, since it is larger than the sum of its proper divisors (3763037701).

312332122211 is an equidigital number, since it uses as much as digits as its factorization.

312332122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3763037700.

The product of its digits is 864, while the sum is 23.

Adding to 312332122211 its reverse (112221233213), we get a palindrome (424553355424).

The spelling of 312332122211 in words is "three hundred twelve billion, three hundred thirty-two million, one hundred twenty-two thousand, two hundred eleven".