228022471 has 2 divisors, whose sum is σ = 228022472. Its totient is φ = 228022470.

The previous prime is 228022469. The next prime is 228022481. The reversal of 228022471 is 174220822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228022471 - 2¹ = 228022469 is a prime.

It is a super-3 number, since 3×228022471³ (a number of 26 digits) contains 333 as substring.

Together with 228022469, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228022451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114011235 + 114011236.

It is an arithmetic number, because the mean of its divisors is an integer number (114011236).

Almost surely, 2^228022471 is an apocalyptic number.

228022471 is a deficient number, since it is larger than the sum of its proper divisors (1).

228022471 is an equidigital number, since it uses as much as digits as its factorization.

228022471 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 228022471 is about 15100.4129413735. The cubic root of 228022471 is about 610.9315436406.

The spelling of 228022471 in words is "two hundred twenty-eight million, twenty-two thousand, four hundred seventy-one".