12205318 has 8 divisors (see below), whose sum is σ = 19104048. Its totient is φ = 5837304.

The previous prime is 12205313. The next prime is 12205321. The reversal of 12205318 is 81350221.

12205318 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×12205318² = 297939574962248, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12205313) 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, 132621 + ... + 132712.

It is an arithmetic number, because the mean of its divisors is an integer number (2388006).

Almost surely, 2^12205318 is an apocalyptic number.

12205318 is a deficient number, since it is larger than the sum of its proper divisors (6898730).

12205318 is a wasteful number, since it uses less digits than its factorization.

12205318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265358.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 12205318 is about 3493.6110258585. The cubic root of 12205318 is about 230.2411962494.

Adding to 12205318 its reverse (81350221), we get a palindrome (93555539).

The spelling of 12205318 in words is "twelve million, two hundred five thousand, three hundred eighteen".