12321120222320 has 160 divisors (see below), whose sum is σ = 35334518529408. Its totient is φ = 3890897731584.

The previous prime is 12321120222283. The next prime is 12321120222347. The reversal of 12321120222320 is 2322202112321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1475252 + ... + 5178668.

Almost surely, 2^{12321120222320} is an apocalyptic number.

12321120222320 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 12321120222320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17667259264704).

12321120222320 is an abundant number, since it is smaller than the sum of its proper divisors (23013398307088).

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

12321120222320 is a wasteful number, since it uses less digits than its factorization.

12321120222320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703907 (or 3703901 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12321120222320 its reverse (2322202112321), we get a palindrome (14643322334641).

The spelling of 12321120222320 in words is "twelve trillion, three hundred twenty-one billion, one hundred twenty million, two hundred twenty-two thousand, three hundred twenty".