12231331222 has 24 divisors (see below), whose sum is σ = 20172207888. Its totient is φ = 5558131920.

The previous prime is 12231331213. The next prime is 12231331289. The reversal of 12231331222 is 22213313221.

12231331222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12231331193 and 12231331202.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1693543 + ... + 1700749.

It is an arithmetic number, because the mean of its divisors is an integer number (840508662).

Almost surely, 2^12231331222 is an apocalyptic number.

12231331222 is a deficient number, since it is larger than the sum of its proper divisors (7940876666).

12231331222 is a wasteful number, since it uses less digits than its factorization.

12231331222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14244 (or 14233 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

Adding to 12231331222 its reverse (22213313221), we get a palindrome (34444644443).

The spelling of 12231331222 in words is "twelve billion, two hundred thirty-one million, three hundred thirty-one thousand, two hundred twenty-two".