111225606 has 16 divisors (see below), whose sum is σ = 227625024. Its totient is φ = 36212904.

The previous prime is 111225571. The next prime is 111225607. The reversal of 111225606 is 606522111.

It is a super-2 number, since 2×111225606² = 24742270860134472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111225607) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 215296 + ... + 215811.

It is an arithmetic number, because the mean of its divisors is an integer number (14226564).

Almost surely, 2^111225606 is an apocalyptic number.

111225606 is an abundant number, since it is smaller than the sum of its proper divisors (116399418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111225606 is a wasteful number, since it uses less digits than its factorization.

111225606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431155.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 111225606 is about 10546.3551049640. The cubic root of 111225606 is about 480.9149302862.

Adding to 111225606 its reverse (606522111), we get a palindrome (717747717).

The spelling of 111225606 in words is "one hundred eleven million, two hundred twenty-five thousand, six hundred six".