99223232130221 has 2 divisors, whose sum is σ = 99223232130222. Its totient is φ = 99223232130220.

The previous prime is 99223232130199. The next prime is 99223232130247. The reversal of 99223232130221 is 12203123232299.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56683747957321 + 42539484172900 = 7528861^2 + 6522230^2 .

It is an emirp because it is prime and its reverse (12203123232299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99223232130221 - 2⁶ = 99223232130157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99223232130271) 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, 49611616065110 + 49611616065111.

It is an arithmetic number, because the mean of its divisors is an integer number (49611616065111).

Almost surely, 2^{99223232130221} is an apocalyptic number.

It is an amenable number.

99223232130221 is a deficient number, since it is larger than the sum of its proper divisors (1).

99223232130221 is an equidigital number, since it uses as much as digits as its factorization.

99223232130221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 99223232130221 in words is "ninety-nine trillion, two hundred twenty-three billion, two hundred thirty-two million, one hundred thirty thousand, two hundred twenty-one".