12227255 has 4 divisors (see below), whose sum is σ = 14672712. Its totient is φ = 9781800.

The previous prime is 12227231. The next prime is 12227263. The reversal of 12227255 is 55272221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12227255 - 2⁸ = 12226999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1222721 + ... + 1222730.

It is an arithmetic number, because the mean of its divisors is an integer number (3668178).

Almost surely, 2^12227255 is an apocalyptic number.

12227255 is a deficient number, since it is larger than the sum of its proper divisors (2445457).

12227255 is an equidigital number, since it uses as much as digits as its factorization.

12227255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445456.

The product of its digits is 2800, while the sum is 26.

The square root of 12227255 is about 3496.7492046185. The cubic root of 12227255 is about 230.3790535930.

Adding to 12227255 its reverse (55272221), we get a palindrome (67499476).

The spelling of 12227255 in words is "twelve million, two hundred twenty-seven thousand, two hundred fifty-five".