12226737 has 4 divisors (see below), whose sum is σ = 16302320. Its totient is φ = 8151156.

The previous prime is 12226727. The next prime is 12226771. The reversal of 12226737 is 73762221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12226737 - 2⁶ = 12226673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12226727) 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 3 ways as a sum of consecutive naturals, for example, 2037787 + ... + 2037792.

It is an arithmetic number, because the mean of its divisors is an integer number (4075580).

Almost surely, 2^12226737 is an apocalyptic number.

It is an amenable number.

12226737 is a deficient number, since it is larger than the sum of its proper divisors (4075583).

12226737 is an equidigital number, since it uses as much as digits as its factorization.

12226737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075582.

The product of its digits is 7056, while the sum is 30.

The square root of 12226737 is about 3496.6751350390. The cubic root of 12226737 is about 230.3758002590.

Adding to 12226737 its reverse (73762221), we get a palindrome (85988958).

The spelling of 12226737 in words is "twelve million, two hundred twenty-six thousand, seven hundred thirty-seven".