12206242 has 4 divisors (see below), whose sum is σ = 18309366. Its totient is φ = 6103120.

The previous prime is 12206209. The next prime is 12206269. The reversal of 12206242 is 24260221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6911641 + 5294601 = 2629^2 + 2301^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3051559 + ... + 3051562.

Almost surely, 2^12206242 is an apocalyptic number.

12206242 is a deficient number, since it is larger than the sum of its proper divisors (6103124).

12206242 is an equidigital number, since it uses as much as digits as its factorization.

12206242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6103123.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 12206242 is about 3493.7432647520. The cubic root of 12206242 is about 230.2470062168.

Adding to 12206242 its reverse (24260221), we get a palindrome (36466463).

The spelling of 12206242 in words is "twelve million, two hundred six thousand, two hundred forty-two".