12229189 has 4 divisors (see below), whose sum is σ = 13976224. Its totient is φ = 10482156.

The previous prime is 12229187. The next prime is 12229207. The reversal of 12229189 is 98192221.

12229189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 12229189 - 2¹ = 12229187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12229183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 873507 + ... + 873520.

It is an arithmetic number, because the mean of its divisors is an integer number (3494056).

Almost surely, 2^12229189 is an apocalyptic number.

It is an amenable number.

12229189 is a deficient number, since it is larger than the sum of its proper divisors (1747035).

12229189 is an equidigital number, since it uses as much as digits as its factorization.

12229189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747034.

The product of its digits is 5184, while the sum is 34.

The square root of 12229189 is about 3497.0257362507. The cubic root of 12229189 is about 230.3911993990.

The spelling of 12229189 in words is "twelve million, two hundred twenty-nine thousand, one hundred eighty-nine".