33030434221 has 2 divisors, whose sum is σ = 33030434222. Its totient is φ = 33030434220.

The previous prime is 33030434207. The next prime is 33030434293. The reversal of 33030434221 is 12243403033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31147308196 + 1883126025 = 176486^2 + 43395^2 .

It is a cyclic number.

It is not a de Polignac number, because 33030434221 - 2⁷ = 33030434093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33030434201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16515217110 + 16515217111.

It is an arithmetic number, because the mean of its divisors is an integer number (16515217111).

Almost surely, 2^33030434221 is an apocalyptic number.

It is an amenable number.

33030434221 is a deficient number, since it is larger than the sum of its proper divisors (1).

33030434221 is an equidigital number, since it uses as much as digits as its factorization.

33030434221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 33030434221 its reverse (12243403033), we get a palindrome (45273837254).

The spelling of 33030434221 in words is "thirty-three billion, thirty million, four hundred thirty-four thousand, two hundred twenty-one".