12280227 has 4 divisors (see below), whose sum is σ = 16373640. Its totient is φ = 8186816.

The previous prime is 12280223. The next prime is 12280249. The reversal of 12280227 is 72208221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12280227 - 2² = 12280223 is a prime.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 12280197 and 12280206.

It is not an unprimeable number, because it can be changed into a prime (12280223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2046702 + ... + 2046707.

It is an arithmetic number, because the mean of its divisors is an integer number (4093410).

Almost surely, 2^12280227 is an apocalyptic number.

12280227 is a deficient number, since it is larger than the sum of its proper divisors (4093413).

12280227 is an equidigital number, since it uses as much as digits as its factorization.

12280227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4093412.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 12280227 is about 3504.3154823731. The cubic root of 12280227 is about 230.7112638422.

Adding to 12280227 its reverse (72208221), we get a palindrome (84488448).

The spelling of 12280227 in words is "twelve million, two hundred eighty thousand, two hundred twenty-seven".