It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
Almost surely, 2228521118 is an apocalyptic number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
228521118 is a wasteful number, since it uses less digits than its factorization.
228521118 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5016.
The square root of 228521118 is about 15116.9149630472. The cubic root of 228521118 is about 611.3765544394.
The spelling of 228521118 in words is "two hundred twenty-eight million, five hundred twenty-one thousand, one hundred eighteen".