12223222321312 has 24 divisors (see below), whose sum is σ = 24458968439892. Its totient is φ = 6011420812800.

The previous prime is 12223222321301. The next prime is 12223222321327. The reversal of 12223222321312 is 21312322232221.

It can be written as a sum of positive squares in 2 ways, for example, as 10215208623376 + 2008013697936 = 3196124^2 + 1417044^2 .

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 3 ways as a sum of consecutive naturals, for example, 3130946389 + ... + 3130950292.

Almost surely, 2^{12223222321312} is an apocalyptic number.

It is an amenable number.

12223222321312 is an abundant number, since it is smaller than the sum of its proper divisors (12235746118580).

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

12223222321312 is an equidigital number, since it uses as much as digits as its factorization.

12223222321312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6261896752 (or 6261896744 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

Adding to 12223222321312 its reverse (21312322232221), we get a palindrome (33535544553533).

The spelling of 12223222321312 in words is "twelve trillion, two hundred twenty-three billion, two hundred twenty-two million, three hundred twenty-one thousand, three hundred twelve".