111222347 has 4 divisors (see below), whose sum is σ = 117764856. Its totient is φ = 104679840.

The previous prime is 111222343. The next prime is 111222383. The reversal of 111222347 is 743222111.

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

It is a cyclic number.

It is not a de Polignac number, because 111222347 - 2² = 111222343 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (111222341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3271229 + ... + 3271262.

It is an arithmetic number, because the mean of its divisors is an integer number (29441214).

Almost surely, 2^111222347 is an apocalyptic number.

111222347 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

111222347 is a deficient number, since it is larger than the sum of its proper divisors (6542509).

111222347 is an equidigital number, since it uses as much as digits as its factorization.

111222347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6542508.

The product of its digits is 672, while the sum is 23.

The square root of 111222347 is about 10546.2005954751. The cubic root of 111222347 is about 480.9102331752.

Adding to 111222347 its reverse (743222111), we get a palindrome (854444458).

The spelling of 111222347 in words is "one hundred eleven million, two hundred twenty-two thousand, three hundred forty-seven".