12303121222 has 24 divisors (see below), whose sum is σ = 22047950736. Its totient is φ = 5043512496.

The previous prime is 12303121151. The next prime is 12303121223. The reversal of 12303121222 is 22212130321.

It is a self number, because there is not a number n which added to its sum of digits gives 12303121222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303121223) 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 11 ways as a sum of consecutive naturals, for example, 823213 + ... + 838024.

It is an arithmetic number, because the mean of its divisors is an integer number (918664614).

Almost surely, 2^12303121222 is an apocalyptic number.

12303121222 is a deficient number, since it is larger than the sum of its proper divisors (9744829514).

12303121222 is a wasteful number, since it uses less digits than its factorization.

12303121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661292 (or 1661269 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12303121222 its reverse (22212130321), we get a palindrome (34515251543).

Subtracting 12303121222 from its reverse (22212130321), we obtain a palindrome (9909009099).

The spelling of 12303121222 in words is "twelve billion, three hundred three million, one hundred twenty-one thousand, two hundred twenty-two".