111422225 has 6 divisors (see below), whose sum is σ = 138163590. Its totient is φ = 89137760.

The previous prime is 111422219. The next prime is 111422243. The reversal of 111422225 is 522224111.

It can be written as a sum of positive squares in 3 ways, for example, as 34386496 + 77035729 = 5864^2 + 8777^2 .

It is not a de Polignac number, because 111422225 - 2⁶ = 111422161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111422197 and 111422206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2228420 + ... + 2228469.

It is an arithmetic number, because the mean of its divisors is an integer number (23027265).

Almost surely, 2^111422225 is an apocalyptic number.

It is an amenable number.

111422225 is a deficient number, since it is larger than the sum of its proper divisors (26741365).

111422225 is an equidigital number, since it uses as much as digits as its factorization.

111422225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4456899 (or 4456894 counting only the distinct ones).

The product of its digits is 320, while the sum is 20.

The square root of 111422225 is about 10555.6726455494. The cubic root of 111422225 is about 481.1981424979.

Adding to 111422225 its reverse (522224111), we get a palindrome (633646336).

The spelling of 111422225 in words is "one hundred eleven million, four hundred twenty-two thousand, two hundred twenty-five".