12322223220 has 96 divisors (see below), whose sum is σ = 37519227648. Its totient is φ = 3009042432.

The previous prime is 12322223191. The next prime is 12322223281. The reversal of 12322223220 is 2232222321.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 125512 + ... + 200991.

It is an arithmetic number, because the mean of its divisors is an integer number (390825288).

Almost surely, 2^12322223220 is an apocalyptic number.

12322223220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12322223220 is an abundant number, since it is smaller than the sum of its proper divisors (25197004428).

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

12322223220 is a wasteful number, since it uses less digits than its factorization.

12322223220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326569 (or 326567 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 12322223220 its reverse (2232222321), we get a palindrome (14554445541).

The spelling of 12322223220 in words is "twelve billion, three hundred twenty-two million, two hundred twenty-three thousand, two hundred twenty".