12215344 has 20 divisors (see below), whose sum is σ = 23904720. Its totient is φ = 6046400.

The previous prime is 12215341. The next prime is 12215381. The reversal of 12215344 is 44351221.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12215341) 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, 2164 + ... + 5395.

It is an arithmetic number, because the mean of its divisors is an integer number (1195236).

Almost surely, 2^12215344 is an apocalyptic number.

It is an amenable number.

12215344 is a deficient number, since it is larger than the sum of its proper divisors (11689376).

12215344 is a wasteful number, since it uses less digits than its factorization.

12215344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7668 (or 7662 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 12215344 is about 3495.0456363258. The cubic root of 12215344 is about 230.3042225043.

Adding to 12215344 its reverse (44351221), we get a palindrome (56566565).

The spelling of 12215344 in words is "twelve million, two hundred fifteen thousand, three hundred forty-four".