12321212213 has 8 divisors (see below), whose sum is σ = 13148716032. Its totient is φ = 11505122496.

The previous prime is 12321212201. The next prime is 12321212219. The reversal of 12321212213 is 31221212321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12321212213 - 2⁶ = 12321212149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321212219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2851295 + ... + 2855612.

It is an arithmetic number, because the mean of its divisors is an integer number (1643589504).

Almost surely, 2^12321212213 is an apocalyptic number.

It is an amenable number.

12321212213 is a deficient number, since it is larger than the sum of its proper divisors (827503819).

12321212213 is a wasteful number, since it uses less digits than its factorization.

12321212213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5707051.

The product of its digits is 288, while the sum is 20.

Adding to 12321212213 its reverse (31221212321), we get a palindrome (43542424534).

The spelling of 12321212213 in words is "twelve billion, three hundred twenty-one million, two hundred twelve thousand, two hundred thirteen".