30221041 has 2 divisors, whose sum is σ = 30221042. Its totient is φ = 30221040.

The previous prime is 30221033. The next prime is 30221069. The reversal of 30221041 is 14012203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20430400 + 9790641 = 4520^2 + 3129^2 .

It is an emirp because it is prime and its reverse (14012203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30221041 - 2³ = 30221033 is a prime.

It is a super-2 number, since 2×30221041² = 1826622638247362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30221071) 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, 15110520 + 15110521.

It is an arithmetic number, because the mean of its divisors is an integer number (15110521).

Almost surely, 2^30221041 is an apocalyptic number.

It is an amenable number.

30221041 is a deficient number, since it is larger than the sum of its proper divisors (1).

30221041 is an equidigital number, since it uses as much as digits as its factorization.

30221041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 30221041 is about 5497.3667332642. The cubic root of 30221041 is about 311.4845237062.

Adding to 30221041 its reverse (14012203), we get a palindrome (44233244).

The spelling of 30221041 in words is "thirty million, two hundred twenty-one thousand, forty-one".