12222304 has 24 divisors (see below), whose sum is σ = 24199560. Its totient is φ = 6076416.

The previous prime is 12222283. The next prime is 12222307. The reversal of 12222304 is 40322221.

12222304 = T₂₅₅ + T₂₅₆ + ... + T₄₄₇.

12222304 is nontrivially palindromic in base 12.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5187 + ... + 7165.

It is an arithmetic number, because the mean of its divisors is an integer number (1008315).

Almost surely, 2^12222304 is an apocalyptic number.

It is an amenable number.

12222304 is a deficient number, since it is larger than the sum of its proper divisors (11977256).

12222304 is a wasteful number, since it uses less digits than its factorization.

12222304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182 (or 2174 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 12222304 is about 3496.0411896887. The cubic root of 12222304 is about 230.3479547438.

Adding to 12222304 its reverse (40322221), we get a palindrome (52544525).

The spelling of 12222304 in words is "twelve million, two hundred twenty-two thousand, three hundred four".