30223030221 has 12 divisors (see below), whose sum is σ = 43948479900. Its totient is φ = 20013459840.

The previous prime is 30223030217. The next prime is 30223030231. The reversal of 30223030221 is 12203032203.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16909101225 + 13313928996 = 130035^2 + 115386^2 .

It is not a de Polignac number, because 30223030221 - 2² = 30223030217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30223030194 and 30223030203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30223030231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11267500 + ... + 11270181.

It is an arithmetic number, because the mean of its divisors is an integer number (3662373325).

Almost surely, 2^30223030221 is an apocalyptic number.

It is an amenable number.

30223030221 is a deficient number, since it is larger than the sum of its proper divisors (13725449679).

30223030221 is a wasteful number, since it uses less digits than its factorization.

30223030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22537836 (or 22537833 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30223030221 its reverse (12203032203), we get a palindrome (42426062424).

The spelling of 30223030221 in words is "thirty billion, two hundred twenty-three million, thirty thousand, two hundred twenty-one".