12205444 has 24 divisors (see below), whose sum is σ = 22192128. Its totient is φ = 5867520.

The previous prime is 12205441. The next prime is 12205447. The reversal of 12205444 is 44450221.

It is a happy number.

12205444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12205441) and next prime (12205447).

It is not an unprimeable number, because it can be changed into a prime (12205441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31677 + ... + 32059.

It is an arithmetic number, because the mean of its divisors is an integer number (924672).

Almost surely, 2^12205444 is an apocalyptic number.

It is an amenable number.

12205444 is a deficient number, since it is larger than the sum of its proper divisors (9986684).

12205444 is a wasteful number, since it uses less digits than its factorization.

12205444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 12205444 is about 3493.6290587296. The cubic root of 12205444 is about 230.2419885350.

Adding to 12205444 its reverse (44450221), we get a palindrome (56655665).

The spelling of 12205444 in words is "twelve million, two hundred five thousand, four hundred forty-four".