12209894 has 8 divisors (see below), whose sum is σ = 19278840. Its totient is φ = 5783616.

The previous prime is 12209887. The next prime is 12209921. The reversal of 12209894 is 49890221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12209894² = 298163022982472, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160619 + ... + 160694.

It is an arithmetic number, because the mean of its divisors is an integer number (2409855).

Almost surely, 2^12209894 is an apocalyptic number.

12209894 is a deficient number, since it is larger than the sum of its proper divisors (7068946).

12209894 is a wasteful number, since it uses less digits than its factorization.

12209894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321334.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 12209894 is about 3494.2658742574. The cubic root of 12209894 is about 230.2699665519.

The spelling of 12209894 in words is "twelve million, two hundred nine thousand, eight hundred ninety-four".