23211030230221 has 2 divisors, whose sum is σ = 23211030230222. Its totient is φ = 23211030230220.

The previous prime is 23211030230161. The next prime is 23211030230233. The reversal of 23211030230221 is 12203203011232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21950967854596 + 1260062375625 = 4685186^2 + 1122525^2 .

It is a cyclic number.

It is not a de Polignac number, because 23211030230221 - 2¹¹ = 23211030228173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23211030230192 and 23211030230201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23211030230321) 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, 11605515115110 + 11605515115111.

It is an arithmetic number, because the mean of its divisors is an integer number (11605515115111).

Almost surely, 2^{23211030230221} is an apocalyptic number.

It is an amenable number.

23211030230221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23211030230221 is an equidigital number, since it uses as much as digits as its factorization.

23211030230221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 23211030230221 its reverse (12203203011232), we get a palindrome (35414233241453).

The spelling of 23211030230221 in words is "twenty-three trillion, two hundred eleven billion, thirty million, two hundred thirty thousand, two hundred twenty-one".