12322112238 has 48 divisors (see below), whose sum is σ = 27757548000. Its totient is φ = 3945775680.

The previous prime is 12322112203. The next prime is 12322112239. The reversal of 12322112238 is 83221122321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12322112239) 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 23 ways as a sum of consecutive naturals, for example, 44568 + ... + 163188.

It is an arithmetic number, because the mean of its divisors is an integer number (578282250).

Almost surely, 2^12322112238 is an apocalyptic number.

12322112238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12322112238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13878774000).

12322112238 is an abundant number, since it is smaller than the sum of its proper divisors (15435435762).

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

12322112238 is a wasteful number, since it uses less digits than its factorization.

12322112238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118857 (or 118854 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 12322112238 its reverse (83221122321), we get a palindrome (95543234559).

The spelling of 12322112238 in words is "twelve billion, three hundred twenty-two million, one hundred twelve thousand, two hundred thirty-eight".