30112344123221 has 2 divisors, whose sum is σ = 30112344123222. Its totient is φ = 30112344123220.

The previous prime is 30112344123181. The next prime is 30112344123293. The reversal of 30112344123221 is 12232144321103.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24171864087121 + 5940480036100 = 4916489^2 + 2437310^2 .

It is a cyclic number.

It is not a de Polignac number, because 30112344123221 - 2³⁴ = 30095164254037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30112344113221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15056172061610 + 15056172061611.

It is an arithmetic number, because the mean of its divisors is an integer number (15056172061611).

Almost surely, 2^{30112344123221} is an apocalyptic number.

It is an amenable number.

30112344123221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30112344123221 is an equidigital number, since it uses as much as digits as its factorization.

30112344123221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 30112344123221 its reverse (12232144321103), we get a palindrome (42344488444324).

The spelling of 30112344123221 in words is "thirty trillion, one hundred twelve billion, three hundred forty-four million, one hundred twenty-three thousand, two hundred twenty-one".