12041111 has 4 divisors (see below), whose sum is σ = 12063672. Its totient is φ = 12018552.

The previous prime is 12041089. The next prime is 12041143. The reversal of 12041111 is 11114021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11114021 = 617 ⋅18013.

It is a cyclic number.

It is not a de Polignac number, because 12041111 - 2⁶ = 12041047 is a prime.

It is a super-2 number, since 2×12041111² = 289976708228642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12041092 and 12041101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12041171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10460 + ... + 11553.

It is an arithmetic number, because the mean of its divisors is an integer number (3015918).

Almost surely, 2^12041111 is an apocalyptic number.

12041111 is a deficient number, since it is larger than the sum of its proper divisors (22561).

12041111 is an equidigital number, since it uses as much as digits as its factorization.

12041111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22560.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 12041111 is about 3470.0304033250. The cubic root of 12041111 is about 229.2039968866.

Adding to 12041111 its reverse (11114021), we get a palindrome (23155132).

The spelling of 12041111 in words is "twelve million, forty-one thousand, one hundred eleven".