12311222211321 has 64 divisors (see below), whose sum is σ = 18918395928576. Its totient is φ = 7048461024000.

The previous prime is 12311222211293. The next prime is 12311222211361.

12311222211321 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12311222211321 - 2⁵ = 12311222211289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12311222211291 and 12311222211300.

It is not an unprimeable number, because it can be changed into a prime (12311222211361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30231360 + ... + 30635886.

It is an arithmetic number, because the mean of its divisors is an integer number (295599936384).

Almost surely, 2^{12311222211321} is an apocalyptic number.

12311222211321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12311222211321 is a deficient number, since it is larger than the sum of its proper divisors (6607173717255).

12311222211321 is a wasteful number, since it uses less digits than its factorization.

12311222211321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405062.

The product of its digits is 576, while the sum is 24.

It can be divided in two parts, 1231122 and 2211321, that added together give a palindrome (3442443).

The spelling of 12311222211321 in words is "twelve trillion, three hundred eleven billion, two hundred twenty-two million, two hundred eleven thousand, three hundred twenty-one".