12321212212230 has 64 divisors (see below), whose sum is σ = 30313353470400. Its totient is φ = 3203274977280.

The previous prime is 12321212212207. The next prime is 12321212212259. The reversal of 12321212212230 is 3221221212321.

It is a self number, because there is not a number n which added to its sum of digits gives 12321212212230.

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, 1747315 + ... + 5262654.

It is an arithmetic number, because the mean of its divisors is an integer number (473646147975).

Almost surely, 2^{12321212212230} is an apocalyptic number.

12321212212230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12321212212230 is an abundant number, since it is smaller than the sum of its proper divisors (17992141258170).

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

12321212212230 is a wasteful number, since it uses less digits than its factorization.

12321212212230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7011449.

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

Adding to 12321212212230 its reverse (3221221212321), we get a palindrome (15542433424551).

Subtracting from 12321212212230 its reverse (3221221212321), we obtain a palindrome (9099990999909).

The spelling of 12321212212230 in words is "twelve trillion, three hundred twenty-one billion, two hundred twelve million, two hundred twelve thousand, two hundred thirty".