12231242 has 8 divisors (see below), whose sum is σ = 18464196. Its totient is φ = 6076512.

The previous prime is 12231229. The next prime is 12231253. The reversal of 12231242 is 24213221.

It can be written as a sum of positive squares in 2 ways, for example, as 11621281 + 609961 = 3409^2 + 781^2 .

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 12231242.

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 3 ways as a sum of consecutive naturals, for example, 19163 + ... + 19790.

Almost surely, 2^12231242 is an apocalyptic number.

12231242 is a deficient number, since it is larger than the sum of its proper divisors (6232954).

12231242 is a wasteful number, since it uses less digits than its factorization.

12231242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39112.

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

The square root of 12231242 is about 3497.3192590897. The cubic root of 12231242 is about 230.4040911415.

Adding to 12231242 its reverse (24213221), we get a palindrome (36444463).

The spelling of 12231242 in words is "twelve million, two hundred thirty-one thousand, two hundred forty-two".