30303222121 has 2 divisors, whose sum is σ = 30303222122. Its totient is φ = 30303222120.

The previous prime is 30303222119. The next prime is 30303222127. The reversal of 30303222121 is 12122230303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26483982121 + 3819240000 = 162739^2 + 61800^2 .

It is a cyclic number.

It is not a de Polignac number, because 30303222121 - 2¹ = 30303222119 is a prime.

Together with 30303222119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30303222127) 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, 15151611060 + 15151611061.

It is an arithmetic number, because the mean of its divisors is an integer number (15151611061).

Almost surely, 2^30303222121 is an apocalyptic number.

It is an amenable number.

30303222121 is a deficient number, since it is larger than the sum of its proper divisors (1).

30303222121 is an equidigital number, since it uses as much as digits as its factorization.

30303222121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30303222121 its reverse (12122230303), we get a palindrome (42425452424).

The spelling of 30303222121 in words is "thirty billion, three hundred three million, two hundred twenty-two thousand, one hundred twenty-one".