12472111 has 4 divisors (see below), whose sum is σ = 12512272. Its totient is φ = 12431952.

The previous prime is 12472099. The next prime is 12472127. The reversal of 12472111 is 11127421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12472111 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 (12472171) 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, 19611 + ... + 20236.

It is an arithmetic number, because the mean of its divisors is an integer number (3128068).

Almost surely, 2^12472111 is an apocalyptic number.

12472111 is a deficient number, since it is larger than the sum of its proper divisors (40161).

12472111 is an equidigital number, since it uses as much as digits as its factorization.

12472111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40160.

The product of its digits is 112, while the sum is 19.

The square root of 12472111 is about 3531.5876033308. The cubic root of 12472111 is about 231.9067141303.

Adding to 12472111 its reverse (11127421), we get a palindrome (23599532).

The spelling of 12472111 in words is "twelve million, four hundred seventy-two thousand, one hundred eleven".