30220322221 has 6 divisors (see below), whose sum is σ = 32102557130. Its totient is φ = 28442655936.

The previous prime is 30220322201. The next prime is 30220322239. The reversal of 30220322221 is 12222302203.

It can be written as a sum of positive squares in 3 ways, for example, as 13062204100 + 17158118121 = 114290^2 + 130989^2 .

It is not a de Polignac number, because 30220322221 - 2⁹ = 30220321709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220322201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52284006 + ... + 52284583.

Almost surely, 2^30220322221 is an apocalyptic number.

It is an amenable number.

30220322221 is a deficient number, since it is larger than the sum of its proper divisors (1882234909).

30220322221 is a wasteful number, since it uses less digits than its factorization.

30220322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104568623 (or 104568606 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 30220322221 its reverse (12222302203), we get a palindrome (42442624424).

The spelling of 30220322221 in words is "thirty billion, two hundred twenty million, three hundred twenty-two thousand, two hundred twenty-one".