12231321244 has 12 divisors (see below), whose sum is σ = 21414370824. Its totient is φ = 6112929584.

The previous prime is 12231321241. The next prime is 12231321283. The reversal of 12231321244 is 44212313221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231321241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672667 + ... + 690610.

It is an arithmetic number, because the mean of its divisors is an integer number (1784530902).

Almost surely, 2^12231321244 is an apocalyptic number.

It is an amenable number.

12231321244 is a deficient number, since it is larger than the sum of its proper divisors (9183049580).

12231321244 is a wasteful number, since it uses less digits than its factorization.

12231321244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365524 (or 1365522 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

Adding to 12231321244 its reverse (44212313221), we get a palindrome (56443634465).

The spelling of 12231321244 in words is "twelve billion, two hundred thirty-one million, three hundred twenty-one thousand, two hundred forty-four".