228321199 has 2 divisors, whose sum is σ = 228321200. Its totient is φ = 228321198.

The previous prime is 228321187. The next prime is 228321217. The reversal of 228321199 is 991123822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228321199 - 2⁵ = 228321167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228321179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114160599 + 114160600.

It is an arithmetic number, because the mean of its divisors is an integer number (114160600).

Almost surely, 2^228321199 is an apocalyptic number.

228321199 is a deficient number, since it is larger than the sum of its proper divisors (1).

228321199 is an equidigital number, since it uses as much as digits as its factorization.

228321199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 37.

The square root of 228321199 is about 15110.3010889922. The cubic root of 228321199 is about 611.1982172389.

The spelling of 228321199 in words is "two hundred twenty-eight million, three hundred twenty-one thousand, one hundred ninety-nine".