30322322221 has 16 divisors (see below), whose sum is σ = 32586532848. Its totient is φ = 28112486400.

The previous prime is 30322322207. The next prime is 30322322249. The reversal of 30322322221 is 12222322303.

It can be written as a sum of positive squares in 8 ways, for example, as 483560100 + 29838762121 = 21990^2 + 172739^2 .

It is a cyclic number.

It is not a de Polignac number, because 30322322221 - 2²⁷ = 30188104493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30322322192 and 30322322201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30322322201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1003981 + ... + 1033741.

It is an arithmetic number, because the mean of its divisors is an integer number (2036658303).

Almost surely, 2^30322322221 is an apocalyptic number.

It is an amenable number.

30322322221 is a deficient number, since it is larger than the sum of its proper divisors (2264210627).

30322322221 is a wasteful number, since it uses less digits than its factorization.

30322322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30672.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 30322322221 its reverse (12222322303), we get a palindrome (42544644524).

The spelling of 30322322221 in words is "thirty billion, three hundred twenty-two million, three hundred twenty-two thousand, two hundred twenty-one".