12321322322220 has 72 divisors (see below), whose sum is σ = 37375326686880. Its totient is φ = 3285628899840.

The previous prime is 12321322322201. The next prime is 12321322322233. The reversal of 12321322322220 is 2222322312321.

12321322322220 is a `hidden beast` number, since 1 + 2 + 3 + 213 + 223 + 2 + 2 + 220 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10360065 + ... + 11487975.

It is an arithmetic number, because the mean of its divisors is an integer number (519101759540).

Almost surely, 2^{12321322322220} is an apocalyptic number.

12321322322220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12321322322220 is an abundant number, since it is smaller than the sum of its proper divisors (25054004364660).

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

12321322322220 is a wasteful number, since it uses less digits than its factorization.

12321322322220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188615 (or 1188610 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 12321322322220 its reverse (2222322312321), we get a palindrome (14543644634541).

The spelling of 12321322322220 in words is "twelve trillion, three hundred twenty-one billion, three hundred twenty-two million, three hundred twenty-two thousand, two hundred twenty".