12222303231000 has 256 divisors, whose sum is σ = 38503198056960. Its totient is φ = 3227711193600.

The previous prime is 12222303230947. The next prime is 12222303231007. The reversal of 12222303231000 is 13230322221.

It is a happy number.

It is a super-2 number, since 2×12222303231000² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222303231007) 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, 1403728647 + ... + 1403737353.

It is an arithmetic number, because the mean of its divisors is an integer number (150403117410).

Almost surely, 2^{12222303231000} is an apocalyptic number.

12222303231000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12222303231000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19251599028480).

12222303231000 is an abundant number, since it is smaller than the sum of its proper divisors (26280894825960).

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

12222303231000 is a wasteful number, since it uses less digits than its factorization.

12222303231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13211 (or 13197 counting only the distinct ones).

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

Adding to 12222303231000 its reverse (13230322221), we get a palindrome (12235533553221).

The spelling of 12222303231000 in words is "twelve trillion, two hundred twenty-two billion, three hundred three million, two hundred thirty-one thousand".