221223321230117 has 2 divisors, whose sum is σ = 221223321230118. Its totient is φ = 221223321230116.

The previous prime is 221223321230077. The next prime is 221223321230183. The reversal of 221223321230117 is 711032123322122.

221223321230117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144464678267716 + 76758642962401 = 12019346^2 + 8761201^2 .

It is a cyclic number.

It is not a de Polignac number, because 221223321230117 - 2¹⁰ = 221223321229093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221223321230017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110611660615058 + 110611660615059.

It is an arithmetic number, because the mean of its divisors is an integer number (110611660615059).

Almost surely, 2^{221223321230117} is an apocalyptic number.

It is an amenable number.

221223321230117 is a deficient number, since it is larger than the sum of its proper divisors (1).

221223321230117 is an equidigital number, since it uses as much as digits as its factorization.

221223321230117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

Adding to 221223321230117 its reverse (711032123322122), we get a palindrome (932255444552239).

The spelling of 221223321230117 in words is "two hundred twenty-one trillion, two hundred twenty-three billion, three hundred twenty-one million, two hundred thirty thousand, one hundred seventeen".