30112332221 has 2 divisors, whose sum is σ = 30112332222. Its totient is φ = 30112332220.

The previous prime is 30112332197. The next prime is 30112332223. The reversal of 30112332221 is 12223321103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30110925625 + 1406596 = 173525^2 + 1186^2 .

It is a cyclic number.

It is not a de Polignac number, because 30112332221 - 2¹⁸ = 30112070077 is a prime.

Together with 30112332223, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30112332193 and 30112332202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30112332223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15056166110 + 15056166111.

It is an arithmetic number, because the mean of its divisors is an integer number (15056166111).

Almost surely, 2^30112332221 is an apocalyptic number.

It is an amenable number.

30112332221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30112332221 is an equidigital number, since it uses as much as digits as its factorization.

30112332221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30112332221 its reverse (12223321103), we get a palindrome (42335653324).

The spelling of 30112332221 in words is "thirty billion, one hundred twelve million, three hundred thirty-two thousand, two hundred twenty-one".