30221033 has 2 divisors, whose sum is σ = 30221034. Its totient is φ = 30221032.

The previous prime is 30221003. The next prime is 30221041. The reversal of 30221033 is 33012203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28761769 + 1459264 = 5363^2 + 1208^2 .

It is a cyclic number.

It is not a de Polignac number, because 30221033 - 2⁸ = 30220777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30220999 and 30221017.

It is not a weakly prime, because it can be changed into another prime (30221003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15110516 + 15110517.

It is an arithmetic number, because the mean of its divisors is an integer number (15110517).

Almost surely, 2^30221033 is an apocalyptic number.

It is an amenable number.

30221033 is a deficient number, since it is larger than the sum of its proper divisors (1).

30221033 is an equidigital number, since it uses as much as digits as its factorization.

30221033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 30221033 is about 5497.3660056431. The cubic root of 30221033 is about 311.4844962212.

Adding to 30221033 its reverse (33012203), we get a palindrome (63233236).

The spelling of 30221033 in words is "thirty million, two hundred twenty-one thousand, thirty-three".