12111442 has 8 divisors (see below), whose sum is σ = 20762496. Its totient is φ = 5190612.

The previous prime is 12111439. The next prime is 12111479. The reversal of 12111442 is 24411121.

It is a happy number.

12111442 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432538 + ... + 432565.

It is an arithmetic number, because the mean of its divisors is an integer number (2595312).

Almost surely, 2^12111442 is an apocalyptic number.

12111442 is a deficient number, since it is larger than the sum of its proper divisors (8651054).

12111442 is an equidigital number, since it uses as much as digits as its factorization.

12111442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865112.

The product of its digits is 64, while the sum is 16.

The square root of 12111442 is about 3480.1497094234. The cubic root of 12111442 is about 229.6493838705.

Adding to 12111442 its reverse (24411121), we get a palindrome (36522563).

The spelling of 12111442 in words is "twelve million, one hundred eleven thousand, four hundred forty-two".