224220071 has 2 divisors, whose sum is σ = 224220072. Its totient is φ = 224220070.

The previous prime is 224220067. The next prime is 224220107. The reversal of 224220071 is 170022422.

It is a happy number.

Together with next prime (224220107) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 224220071 - 2² = 224220067 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224220571) 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, 112110035 + 112110036.

It is an arithmetic number, because the mean of its divisors is an integer number (112110036).

Almost surely, 2^224220071 is an apocalyptic number.

224220071 is a deficient number, since it is larger than the sum of its proper divisors (1).

224220071 is an equidigital number, since it uses as much as digits as its factorization.

224220071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 224220071 is about 14973.9797983035. The cubic root of 224220071 is about 607.5166177213.

Adding to 224220071 its reverse (170022422), we get a palindrome (394242493).

The spelling of 224220071 in words is "two hundred twenty-four million, two hundred twenty thousand, seventy-one".