30222271 has 2 divisors, whose sum is σ = 30222272. Its totient is φ = 30222270.

The previous prime is 30222259. The next prime is 30222287. The reversal of 30222271 is 17222203.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30222271 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30222211) 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, 15111135 + 15111136.

It is an arithmetic number, because the mean of its divisors is an integer number (15111136).

Almost surely, 2^30222271 is an apocalyptic number.

30222271 is a deficient number, since it is larger than the sum of its proper divisors (1).

30222271 is an equidigital number, since it uses as much as digits as its factorization.

30222271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 30222271 is about 5497.4786038692. The cubic root of 30222271 is about 311.4887494681.

Adding to 30222271 its reverse (17222203), we get a palindrome (47444474).

The spelling of 30222271 in words is "thirty million, two hundred twenty-two thousand, two hundred seventy-one".