111145422 has 16 divisors (see below), whose sum is σ = 235366992. Its totient is φ = 34869120.

The previous prime is 111145381. The next prime is 111145457. The reversal of 111145422 is 224541111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544729 + ... + 544932.

It is an arithmetic number, because the mean of its divisors is an integer number (14710437).

Almost surely, 2^111145422 is an apocalyptic number.

111145422 is an abundant number, since it is smaller than the sum of its proper divisors (124221570).

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

111145422 is a wasteful number, since it uses less digits than its factorization.

111145422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089683.

The product of its digits is 320, while the sum is 21.

The square root of 111145422 is about 10542.5529166327. The cubic root of 111145422 is about 480.7993365412.

Adding to 111145422 its reverse (224541111), we get a palindrome (335686533).

The spelling of 111145422 in words is "one hundred eleven million, one hundred forty-five thousand, four hundred twenty-two".