12225277 has 8 divisors (see below), whose sum is σ = 12467520. Its totient is φ = 11985120.

The previous prime is 12225251. The next prime is 12225299. The reversal of 12225277 is 77252221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12225277 - 2⁷ = 12225149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12225247) 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, 16174 + ... + 16912.

It is an arithmetic number, because the mean of its divisors is an integer number (1558440).

Almost surely, 2^12225277 is an apocalyptic number.

It is an amenable number.

12225277 is a deficient number, since it is larger than the sum of its proper divisors (242243).

12225277 is an equidigital number, since it uses as much as digits as its factorization.

12225277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043.

The product of its digits is 3920, while the sum is 28.

The square root of 12225277 is about 3496.4663590545. The cubic root of 12225277 is about 230.3666301357.

Adding to 12225277 its reverse (77252221), we get a palindrome (89477498).

The spelling of 12225277 in words is "twelve million, two hundred twenty-five thousand, two hundred seventy-seven".