12442111 has 16 divisors (see below), whose sum is σ = 13996800. Its totient is φ = 10964800.

The previous prime is 12442099. The next prime is 12442117. The reversal of 12442111 is 11124421.

It is a happy number.

12442111 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12442111 - 2²³ = 4053503 is a prime.

It is a super-2 number, since 2×12442111² = 309612252272642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69420 + ... + 69598.

It is an arithmetic number, because the mean of its divisors is an integer number (874800).

Almost surely, 2^12442111 is an apocalyptic number.

12442111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12442111 is a deficient number, since it is larger than the sum of its proper divisors (1554689).

12442111 is a wasteful number, since it uses less digits than its factorization.

12442111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350.

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

The square root of 12442111 is about 3527.3376645850. The cubic root of 12442111 is about 231.7206246197.

Adding to 12442111 its reverse (11124421), we get a palindrome (23566532).

It can be divided in two parts, 124421 and 11, that multiplied together give a palindrome (1368631).

The spelling of 12442111 in words is "twelve million, four hundred forty-two thousand, one hundred eleven".