12132242 has 8 divisors (see below), whose sum is σ = 18279216. Its totient is φ = 6039172.

The previous prime is 12132223. The next prime is 12132259. The reversal of 12132242 is 24223121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12132242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12908 + ... + 13815.

It is an arithmetic number, because the mean of its divisors is an integer number (2284902).

Almost surely, 2^12132242 is an apocalyptic number.

12132242 is a deficient number, since it is larger than the sum of its proper divisors (6146974).

12132242 is a wasteful number, since it uses less digits than its factorization.

12132242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26952.

The product of its digits is 192, while the sum is 17.

The square root of 12132242 is about 3483.1368046633. The cubic root of 12132242 is about 229.7807740966.

Adding to 12132242 its reverse (24223121), we get a palindrome (36355363).

The spelling of 12132242 in words is "twelve million, one hundred thirty-two thousand, two hundred forty-two".