12225345 has 16 divisors (see below), whose sum is σ = 21339072. Its totient is φ = 5927360.

The previous prime is 12225299. The next prime is 12225347. The reversal of 12225345 is 54352221.

It is not a de Polignac number, because 12225345 - 2¹⁰ = 12224321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12225347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36882 + ... + 37211.

It is an arithmetic number, because the mean of its divisors is an integer number (1333692).

Almost surely, 2^12225345 is an apocalyptic number.

12225345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12225345 is a deficient number, since it is larger than the sum of its proper divisors (9113727).

12225345 is a wasteful number, since it uses less digits than its factorization.

12225345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74112.

The product of its digits is 2400, while the sum is 24.

The square root of 12225345 is about 3496.4760831443. The cubic root of 12225345 is about 230.3670572535.

Adding to 12225345 its reverse (54352221), we get a palindrome (66577566).

The spelling of 12225345 in words is "twelve million, two hundred twenty-five thousand, three hundred forty-five".