30233033221 has 2 divisors, whose sum is σ = 30233033222. Its totient is φ = 30233033220.

The previous prime is 30233033177. The next prime is 30233033227. The reversal of 30233033221 is 12233033203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15352449025 + 14880584196 = 123905^2 + 121986^2 .

It is a cyclic number.

It is not a de Polignac number, because 30233033221 - 2⁷ = 30233033093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30233033192 and 30233033201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30233033227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15116516610 + 15116516611.

It is an arithmetic number, because the mean of its divisors is an integer number (15116516611).

Almost surely, 2^30233033221 is an apocalyptic number.

It is an amenable number.

30233033221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30233033221 is an equidigital number, since it uses as much as digits as its factorization.

30233033221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 30233033221 its reverse (12233033203), we get a palindrome (42466066424).

The spelling of 30233033221 in words is "thirty billion, two hundred thirty-three million, thirty-three thousand, two hundred twenty-one".