228112219 has 2 divisors, whose sum is σ = 228112220. Its totient is φ = 228112218.

The previous prime is 228112211. The next prime is 228112223. The reversal of 228112219 is 912211822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228112219 - 2³ = 228112211 is a prime.

It is a super-2 number, since 2×228112219² = 104070368914207922, which contains 22 as substring.

It is equal to p_12544390 and since 228112219 and 12544390 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (228112211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114056109 + 114056110.

It is an arithmetic number, because the mean of its divisors is an integer number (114056110).

Almost surely, 2^228112219 is an apocalyptic number.

228112219 is a deficient number, since it is larger than the sum of its proper divisors (1).

228112219 is an equidigital number, since it uses as much as digits as its factorization.

228112219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 28.

The square root of 228112219 is about 15103.3843558323. The cubic root of 228112219 is about 611.0116858768.

The spelling of 228112219 in words is "two hundred twenty-eight million, one hundred twelve thousand, two hundred nineteen".