12224505 has 32 divisors (see below), whose sum is σ = 20966400. Its totient is φ = 6063552.

The previous prime is 12224501. The next prime is 12224521. The reversal of 12224505 is 50542221.

It is a happy number.

It is not a de Polignac number, because 12224505 - 2² = 12224501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12224501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16452 + ... + 17178.

It is an arithmetic number, because the mean of its divisors is an integer number (655200).

Almost surely, 2^12224505 is an apocalyptic number.

12224505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12224505 is a deficient number, since it is larger than the sum of its proper divisors (8741895).

12224505 is a wasteful number, since it uses less digits than its factorization.

12224505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 12224505 is about 3496.3559601391. The cubic root of 12224505 is about 230.3617809809.

Adding to 12224505 its reverse (50542221), we get a palindrome (62766726).

The spelling of 12224505 in words is "twelve million, two hundred twenty-four thousand, five hundred five".