12220304 has 20 divisors (see below), whose sum is σ = 23803164. Its totient is φ = 6077568.

The previous prime is 12220301. The next prime is 12220333. The reversal of 12220304 is 40302221.

It can be written as a sum of positive squares in 2 ways, for example, as 8410000 + 3810304 = 2900^2 + 1952^2 .

It is not an unprimeable number, because it can be changed into a prime (12220301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214 + ... + 5090.

Almost surely, 2^12220304 is an apocalyptic number.

It is an amenable number.

12220304 is a deficient number, since it is larger than the sum of its proper divisors (11582860).

12220304 is a wasteful number, since it uses less digits than its factorization.

12220304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4082 (or 4076 counting only the distinct ones).

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

The square root of 12220304 is about 3495.7551401664. The cubic root of 12220304 is about 230.3353897086.

Adding to 12220304 its reverse (40302221), we get a palindrome (52522525).

The spelling of 12220304 in words is "twelve million, two hundred twenty thousand, three hundred four".