321212212223 has 8 divisors (see below), whose sum is σ = 367105822848. Its totient is φ = 275320139544.

The previous prime is 321212212213. The next prime is 321212212259. The reversal of 321212212223 is 322212212123.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321212212223 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 (321212212213) 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, 104540 + ... + 808302.

It is an arithmetic number, because the mean of its divisors is an integer number (45888227856).

Almost surely, 2^321212212223 is an apocalyptic number.

321212212223 is a deficient number, since it is larger than the sum of its proper divisors (45893610625).

321212212223 is an equidigital number, since it uses as much as digits as its factorization.

321212212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768973.

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

Adding to 321212212223 its reverse (322212212123), we get a palindrome (643424424346).

The spelling of 321212212223 in words is "three hundred twenty-one billion, two hundred twelve million, two hundred twelve thousand, two hundred twenty-three".