220100020487717 has 2 divisors, whose sum is σ = 220100020487718. Its totient is φ = 220100020487716.

The previous prime is 220100020487651. The next prime is 220100020487759. The reversal of 220100020487717 is 717784020001022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145134883273636 + 74965137214081 = 12047194^2 + 8658241^2 .

It is a cyclic number.

It is not a de Polignac number, because 220100020487717 - 2¹⁴ = 220100020471333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220100020487117) 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, 110050010243858 + 110050010243859.

It is an arithmetic number, because the mean of its divisors is an integer number (110050010243859).

Almost surely, 2^{220100020487717} is an apocalyptic number.

It is an amenable number.

220100020487717 is a deficient number, since it is larger than the sum of its proper divisors (1).

220100020487717 is an equidigital number, since it uses as much as digits as its factorization.

220100020487717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87808, while the sum is 41.

Adding to 220100020487717 its reverse (717784020001022), we get a palindrome (937884040488739).

The spelling of 220100020487717 in words is "two hundred twenty trillion, one hundred billion, twenty million, four hundred eighty-seven thousand, seven hundred seventeen".