111901228 has 6 divisors (see below), whose sum is σ = 195827156. Its totient is φ = 55950612.

The previous prime is 111901217. The next prime is 111901243. The reversal of 111901228 is 822109111.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13987650 + ... + 13987657.

Almost surely, 2^111901228 is an apocalyptic number.

It is an amenable number.

111901228 is a deficient number, since it is larger than the sum of its proper divisors (83925928).

111901228 is a wasteful number, since it uses less digits than its factorization.

111901228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27975311 (or 27975309 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 25.

The square root of 111901228 is about 10578.3376765917. The cubic root of 111901228 is about 481.8867120103.

The spelling of 111901228 in words is "one hundred eleven million, nine hundred one thousand, two hundred twenty-eight".