12223110321312 has 144 divisors (see below), whose sum is σ = 35294456022336. Its totient is φ = 3701164262400.

The previous prime is 12223110321293. The next prime is 12223110321337. The reversal of 12223110321312 is 21312301132221.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 23 ways as a sum of consecutive naturals, for example, 14946453 + ... + 15743019.

It is an arithmetic number, because the mean of its divisors is an integer number (245100389044).

Almost surely, 2^{12223110321312} is an apocalyptic number.

12223110321312 is a gapful number since it is divisible by the number (12) 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 12223110321312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17647228011168).

12223110321312 is an abundant number, since it is smaller than the sum of its proper divisors (23071345701024).

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

12223110321312 is a wasteful number, since it uses less digits than its factorization.

12223110321312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797923 (or 797904 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12223110321312 its reverse (21312301132221), we get a palindrome (33535411453533).

The spelling of 12223110321312 in words is "twelve trillion, two hundred twenty-three billion, one hundred ten million, three hundred twenty-one thousand, three hundred twelve".