12227089 has 16 divisors (see below), whose sum is σ = 14832000. Its totient is φ = 9846144.

The previous prime is 12227081. The next prime is 12227167. The reversal of 12227089 is 98072221.

It is not a de Polignac number, because 12227089 - 2³ = 12227081 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 12227089.

It is not an unprimeable number, because it can be changed into a prime (12227081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19509 + ... + 20125.

It is an arithmetic number, because the mean of its divisors is an integer number (927000).

Almost surely, 2^12227089 is an apocalyptic number.

12227089 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12227089 is a deficient number, since it is larger than the sum of its proper divisors (2604911).

12227089 is a wasteful number, since it uses less digits than its factorization.

12227089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12227089 is about 3496.7254682059. The cubic root of 12227089 is about 230.3780110288.

The spelling of 12227089 in words is "twelve million, two hundred twenty-seven thousand, eighty-nine".