30301253221 has 2 divisors, whose sum is σ = 30301253222. Its totient is φ = 30301253220.

The previous prime is 30301253197. The next prime is 30301253231. The reversal of 30301253221 is 12235210303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30192885121 + 108368100 = 173761^2 + 10410^2 .

It is a cyclic number.

It is not a de Polignac number, because 30301253221 - 2⁷ = 30301253093 is a prime.

It is a super-3 number, since 3×30301253221³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30301253192 and 30301253201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30301253231) 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, 15150626610 + 15150626611.

It is an arithmetic number, because the mean of its divisors is an integer number (15150626611).

Almost surely, 2^30301253221 is an apocalyptic number.

It is an amenable number.

30301253221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30301253221 is an equidigital number, since it uses as much as digits as its factorization.

30301253221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 30301253221 its reverse (12235210303), we get a palindrome (42536463524).

The spelling of 30301253221 in words is "thirty billion, three hundred one million, two hundred fifty-three thousand, two hundred twenty-one".