12189219 has 16 divisors (see below), whose sum is σ = 18663168. Its totient is φ = 6931872.

The previous prime is 12189181. The next prime is 12189257. The reversal of 12189219 is 91298121.

It is an interprime number because it is at equal distance from previous prime (12189181) and next prime (12189257).

It is not a de Polignac number, because 12189219 - 2¹² = 12185123 is a prime.

It is a super-2 number, since 2×12189219² = 297154119659922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12189219.

It is not an unprimeable number, because it can be changed into a prime (12189269) 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, 3489 + ... + 6045.

It is an arithmetic number, because the mean of its divisors is an integer number (1166448).

Almost surely, 2^12189219 is an apocalyptic number.

12189219 is a deficient number, since it is larger than the sum of its proper divisors (6473949).

12189219 is a wasteful number, since it uses less digits than its factorization.

12189219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2794.

The product of its digits is 2592, while the sum is 33.

The square root of 12189219 is about 3491.3062025551. The cubic root of 12189219 is about 230.1399211625.

The spelling of 12189219 in words is "twelve million, one hundred eighty-nine thousand, two hundred nineteen".