12209196 has 48 divisors (see below), whose sum is σ = 30524256. Its totient is φ = 3784704.

The previous prime is 12209167. The next prime is 12209207. The reversal of 12209196 is 69190221.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 19480 + ... + 20096.

It is an arithmetic number, because the mean of its divisors is an integer number (635922).

Almost surely, 2^12209196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12209196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15262128).

12209196 is an abundant number, since it is smaller than the sum of its proper divisors (18315060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12209196 is a wasteful number, since it uses less digits than its factorization.

12209196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 12209196 is about 3494.1659949121. The cubic root of 12209196 is about 230.2655785395.

The spelling of 12209196 in words is "twelve million, two hundred nine thousand, one hundred ninety-six".