30122030221 has 2 divisors, whose sum is σ = 30122030222. Its totient is φ = 30122030220.

The previous prime is 30122030203. The next prime is 30122030243. The reversal of 30122030221 is 12203022103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24495380100 + 5626650121 = 156510^2 + 75011^2 .

It is an emirp because it is prime and its reverse (12203022103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30122030221 - 2²¹ = 30119933069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30122030195 and 30122030204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30122030251) 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, 15061015110 + 15061015111.

It is an arithmetic number, because the mean of its divisors is an integer number (15061015111).

Almost surely, 2^30122030221 is an apocalyptic number.

It is an amenable number.

30122030221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30122030221 is an equidigital number, since it uses as much as digits as its factorization.

30122030221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 30122030221 its reverse (12203022103), we get a palindrome (42325052324).

The spelling of 30122030221 in words is "thirty billion, one hundred twenty-two million, thirty thousand, two hundred twenty-one".