12272226 has 8 divisors (see below), whose sum is σ = 24544464. Its totient is φ = 4090740.

The previous prime is 12272167. The next prime is 12272231. The reversal of 12272226 is 62227221.

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

12272226 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 12272196 and 12272205.

It is an unprimeable number.

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, 1022680 + ... + 1022691.

It is an arithmetic number, because the mean of its divisors is an integer number (3068058).

Almost surely, 2^12272226 is an apocalyptic number.

12272226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12272226 is a wasteful number, since it uses less digits than its factorization.

12272226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045376.

The product of its digits is 1344, while the sum is 24.

The square root of 12272226 is about 3503.1737039433. The cubic root of 12272226 is about 230.6611474543.

Adding to 12272226 its reverse (62227221), we get a palindrome (74499447).

The spelling of 12272226 in words is "twelve million, two hundred seventy-two thousand, two hundred twenty-six".