12189422 has 16 divisors (see below), whose sum is σ = 21192192. Its totient is φ = 5150040.

The previous prime is 12189371. The next prime is 12189439. The reversal of 12189422 is 22498121.

It is a super-3 number, since 3×12189422³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5138 + ... + 7125.

It is an arithmetic number, because the mean of its divisors is an integer number (1324512).

Almost surely, 2^12189422 is an apocalyptic number.

12189422 is a deficient number, since it is larger than the sum of its proper divisors (9002770).

12189422 is a wasteful number, since it uses less digits than its factorization.

12189422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12343.

The product of its digits is 2304, while the sum is 29.

The square root of 12189422 is about 3491.3352746478. The cubic root of 12189422 is about 230.1411987435.

The spelling of 12189422 in words is "twelve million, one hundred eighty-nine thousand, four hundred twenty-two".