12312303222 has 8 divisors (see below), whose sum is σ = 24624606456. Its totient is φ = 4104101072.

The previous prime is 12312303169. The next prime is 12312303229. The reversal of 12312303222 is 22230321321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

12312303222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312303229) 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 3 ways as a sum of consecutive naturals, for example, 1026025263 + ... + 1026025274.

It is an arithmetic number, because the mean of its divisors is an integer number (3078075807).

Almost surely, 2^12312303222 is an apocalyptic number.

12312303222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12312303222 is a wasteful number, since it uses less digits than its factorization.

12312303222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052050542.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12312303222 its reverse (22230321321), we get a palindrome (34542624543).

The spelling of 12312303222 in words is "twelve billion, three hundred twelve million, three hundred three thousand, two hundred twenty-two".