23330221217 has 2 divisors, whose sum is σ = 23330221218. Its totient is φ = 23330221216.

The previous prime is 23330221207. The next prime is 23330221283. The reversal of 23330221217 is 71212203332.

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., 17140308241 + 6189912976 = 130921^2 + 78676^2 .

It is a cyclic number.

It is not a de Polignac number, because 23330221217 - 2⁶ = 23330221153 is a prime.

It is a super-2 number, since 2×23330221217² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23330221207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11665110608 + 11665110609.

It is an arithmetic number, because the mean of its divisors is an integer number (11665110609).

Almost surely, 2^23330221217 is an apocalyptic number.

It is an amenable number.

23330221217 is a deficient number, since it is larger than the sum of its proper divisors (1).

23330221217 is an equidigital number, since it uses as much as digits as its factorization.

23330221217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 23330221217 its reverse (71212203332), we get a palindrome (94542424549).

The spelling of 23330221217 in words is "twenty-three billion, three hundred thirty million, two hundred twenty-one thousand, two hundred seventeen".