12321322011222 has 256 divisors, whose sum is σ = 30606643888128. Its totient is φ = 3231819440640.

The previous prime is 12321322011199. The next prime is 12321322011247. The reversal of 12321322011222 is 22211022312321.

It is a super-2 number, since 2×12321322011222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12321322011192 and 12321322011201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1215954868 + ... + 1215965000.

It is an arithmetic number, because the mean of its divisors is an integer number (119557202688).

Almost surely, 2^{12321322011222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12321322011222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15303321944064).

12321322011222 is an abundant number, since it is smaller than the sum of its proper divisors (18285321876906).

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

12321322011222 is a wasteful number, since it uses less digits than its factorization.

12321322011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10843.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12321322011222 its reverse (22211022312321), we get a palindrome (34532344323543).

The spelling of 12321322011222 in words is "twelve trillion, three hundred twenty-one billion, three hundred twenty-two million, eleven thousand, two hundred twenty-two".