12222649 has 8 divisors (see below), whose sum is σ = 12660480. Its totient is φ = 11787600.

The previous prime is 12222647. The next prime is 12222667. The reversal of 12222649 is 94622221.

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 12222649 - 2¹ = 12222647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222641) 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 7 ways as a sum of consecutive naturals, for example, 12519 + ... + 13459.

It is an arithmetic number, because the mean of its divisors is an integer number (1582560).

Almost surely, 2^12222649 is an apocalyptic number.

It is an amenable number.

12222649 is a deficient number, since it is larger than the sum of its proper divisors (437831).

12222649 is an equidigital number, since it uses as much as digits as its factorization.

12222649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391.

The product of its digits is 3456, while the sum is 28.

The square root of 12222649 is about 3496.0905308644. The cubic root of 12222649 is about 230.3501220738.

The spelling of 12222649 in words is "twelve million, two hundred twenty-two thousand, six hundred forty-nine".