228422071 has 2 divisors, whose sum is σ = 228422072. Its totient is φ = 228422070.

The previous prime is 228422027. The next prime is 228422083. The reversal of 228422071 is 170224822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228422071 - 2¹³ = 228413879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228422171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114211035 + 114211036.

It is an arithmetic number, because the mean of its divisors is an integer number (114211036).

Almost surely, 2^228422071 is an apocalyptic number.

228422071 is a deficient number, since it is larger than the sum of its proper divisors (1).

228422071 is an equidigital number, since it uses as much as digits as its factorization.

228422071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 228422071 is about 15113.6385758030. The cubic root of 228422071 is about 611.2882128382.

Adding to 228422071 its reverse (170224822), we get a palindrome (398646893).

The spelling of 228422071 in words is "two hundred twenty-eight million, four hundred twenty-two thousand, seventy-one".