12232111 has 4 divisors (see below), whose sum is σ = 12239424. Its totient is φ = 12224800.

The previous prime is 12232091. The next prime is 12232117. The reversal of 12232111 is 11123221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12232111 - 2⁹ = 12231599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12232091 and 12232100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12232117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231 + ... + 4951.

It is an arithmetic number, because the mean of its divisors is an integer number (3059856).

Almost surely, 2^12232111 is an apocalyptic number.

12232111 is a deficient number, since it is larger than the sum of its proper divisors (7313).

12232111 is an equidigital number, since it uses as much as digits as its factorization.

12232111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7312.

The product of its digits is 24, while the sum is 13.

The square root of 12232111 is about 3497.4434948974. The cubic root of 12232111 is about 230.4095475624.

Adding to 12232111 its reverse (11123221), we get a palindrome (23355332).

The spelling of 12232111 in words is "twelve million, two hundred thirty-two thousand, one hundred eleven".