12320222 has 4 divisors (see below), whose sum is σ = 18480336. Its totient is φ = 6160110.

The previous prime is 12320219. The next prime is 12320239. The reversal of 12320222 is 22202321.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 12320197 and 12320206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3080054 + ... + 3080057.

It is an arithmetic number, because the mean of its divisors is an integer number (4620084).

Almost surely, 2^12320222 is an apocalyptic number.

12320222 is a deficient number, since it is larger than the sum of its proper divisors (6160114).

12320222 is an equidigital number, since it uses as much as digits as its factorization.

12320222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160113.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 12320222 is about 3510.0173788744. The cubic root of 12320222 is about 230.9614573101.

Adding to 12320222 its reverse (22202321), we get a palindrome (34522543).

The spelling of 12320222 in words is "twelve million, three hundred twenty thousand, two hundred twenty-two".