111088228 has 12 divisors (see below), whose sum is σ = 194892012. Its totient is φ = 55404800.

The previous prime is 111088223. The next prime is 111088273. The reversal of 111088228 is 822880111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 102373924 + 8714304 = 10118^2 + 2952^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111088228.

It is not an unprimeable number, because it can be changed into a prime (111088223) 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, 33025 + ... + 36232.

It is an arithmetic number, because the mean of its divisors is an integer number (16241001).

Almost surely, 2^111088228 is an apocalyptic number.

It is an amenable number.

111088228 is a deficient number, since it is larger than the sum of its proper divisors (83803784).

111088228 is a wasteful number, since it uses less digits than its factorization.

111088228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69662 (or 69660 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 31.

The square root of 111088228 is about 10539.8400367368. The cubic root of 111088228 is about 480.7168513461.

The spelling of 111088228 in words is "one hundred eleven million, eighty-eight thousand, two hundred twenty-eight".