221303230193 has 2 divisors, whose sum is σ = 221303230194. Its totient is φ = 221303230192.

The previous prime is 221303230177. The next prime is 221303230219. The reversal of 221303230193 is 391032303122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181802462689 + 39500767504 = 426383^2 + 198748^2 .

It is a cyclic number.

It is not a de Polignac number, because 221303230193 - 2⁴ = 221303230177 is a prime.

It is not a weakly prime, because it can be changed into another prime (221303230123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110651615096 + 110651615097.

It is an arithmetic number, because the mean of its divisors is an integer number (110651615097).

Almost surely, 2^221303230193 is an apocalyptic number.

It is an amenable number.

221303230193 is a deficient number, since it is larger than the sum of its proper divisors (1).

221303230193 is an equidigital number, since it uses as much as digits as its factorization.

221303230193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 29.

The spelling of 221303230193 in words is "two hundred twenty-one billion, three hundred three million, two hundred thirty thousand, one hundred ninety-three".