12210304 has 16 divisors (see below), whose sum is σ = 24325470. Its totient is φ = 6105088.

The previous prime is 12210287. The next prime is 12210307. The reversal of 12210304 is 40301221.

It can be written as a sum of positive squares in only one way, i.e., 7011904 + 5198400 = 2648^2 + 2280^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47569 + ... + 47824.

Almost surely, 2^12210304 is an apocalyptic number.

It is an amenable number.

12210304 is a deficient number, since it is larger than the sum of its proper divisors (12115166).

12210304 is an frugal number, since it uses more digits than its factorization.

12210304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95407 (or 95395 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12210304 is about 3494.3245413098. The cubic root of 12210304 is about 230.2725439597.

Adding to 12210304 its reverse (40301221), we get a palindrome (52511525).

The spelling of 12210304 in words is "twelve million, two hundred ten thousand, three hundred four".