12331223322222 has 128 divisors (see below), whose sum is σ = 30242117283840. Its totient is φ = 3277007193600.

The previous prime is 12331223322169. The next prime is 12331223322227. The reversal of 12331223322222 is 22222332213321.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12331223322222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331223322227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3197083 + ... + 5906249.

It is an arithmetic number, because the mean of its divisors is an integer number (236266541280).

Almost surely, 2^{12331223322222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12331223322222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15121058641920).

12331223322222 is an abundant number, since it is smaller than the sum of its proper divisors (17910893961618).

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

12331223322222 is a wasteful number, since it uses less digits than its factorization.

12331223322222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709346.

The product of its digits is 20736, while the sum is 30.

Adding to 12331223322222 its reverse (22222332213321), we get a palindrome (34553555535543).

The spelling of 12331223322222 in words is "twelve trillion, three hundred thirty-one billion, two hundred twenty-three million, three hundred twenty-two thousand, two hundred twenty-two".