12223311131 has 4 divisors (see below), whose sum is σ = 12223858200. Its totient is φ = 12222764064.

The previous prime is 12223311127. The next prime is 12223311143. The reversal of 12223311131 is 13111332221.

It is a happy number.

12223311131 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 a cyclic number.

It is not a de Polignac number, because 12223311131 - 2² = 12223311127 is a prime.

It is a super-2 number, since 2×12223311131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12223311431) 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, 238526 + ... + 285203.

It is an arithmetic number, because the mean of its divisors is an integer number (3055964550).

Almost surely, 2^12223311131 is an apocalyptic number.

12223311131 is a deficient number, since it is larger than the sum of its proper divisors (547069).

12223311131 is an equidigital number, since it uses as much as digits as its factorization.

12223311131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547068.

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

Adding to 12223311131 its reverse (13111332221), we get a palindrome (25334643352).

The spelling of 12223311131 in words is "twelve billion, two hundred twenty-three million, three hundred eleven thousand, one hundred thirty-one".