12321220222 has 8 divisors (see below), whose sum is σ = 18484138296. Its totient is φ = 6159840792.

The previous prime is 12321220201. The next prime is 12321220231. The reversal of 12321220222 is 22202212321.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12321220222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364428 + ... + 396799.

It is an arithmetic number, because the mean of its divisors is an integer number (2310517287).

Almost surely, 2^12321220222 is an apocalyptic number.

12321220222 is a deficient number, since it is larger than the sum of its proper divisors (6162918074).

12321220222 is an equidigital number, since it uses as much as digits as its factorization.

12321220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769322.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12321220222 its reverse (22202212321), we get a palindrome (34523432543).

The spelling of 12321220222 in words is "twelve billion, three hundred twenty-one million, two hundred twenty thousand, two hundred twenty-two".