12240111 has 8 divisors (see below), whose sum is σ = 17575600. Its totient is φ = 7532352.

The previous prime is 12240091. The next prime is 12240121. The reversal of 12240111 is 11104221.

It is a happy number.

12240111 is digitally balanced in base 3, 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 not a de Polignac number, because 12240111 - 2¹⁷ = 12109039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156886 + ... + 156963.

It is an arithmetic number, because the mean of its divisors is an integer number (2196950).

Almost surely, 2^12240111 is an apocalyptic number.

12240111 is a deficient number, since it is larger than the sum of its proper divisors (5335489).

12240111 is a wasteful number, since it uses less digits than its factorization.

12240111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313865.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 12240111 is about 3498.5870004903. The cubic root of 12240111 is about 230.4597671493.

Adding to 12240111 its reverse (11104221), we get a palindrome (23344332).

The spelling of 12240111 in words is "twelve million, two hundred forty thousand, one hundred eleven".