221233020201317 has 2 divisors, whose sum is σ = 221233020201318. Its totient is φ = 221233020201316.

The previous prime is 221233020201311. The next prime is 221233020201337. The reversal of 221233020201317 is 713102020332122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220802035829281 + 430984372036 = 14859409^2 + 656494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221233020201317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221233020201317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221233020201311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110616510100658 + 110616510100659.

It is an arithmetic number, because the mean of its divisors is an integer number (110616510100659).

Almost surely, 2^{221233020201317} is an apocalyptic number.

It is an amenable number.

221233020201317 is a deficient number, since it is larger than the sum of its proper divisors (1).

221233020201317 is an equidigital number, since it uses as much as digits as its factorization.

221233020201317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 221233020201317 its reverse (713102020332122), we get a palindrome (934335040533439).

The spelling of 221233020201317 in words is "two hundred twenty-one trillion, two hundred thirty-three billion, twenty million, two hundred one thousand, three hundred seventeen".