220222016917717 has 2 divisors, whose sum is σ = 220222016917718. Its totient is φ = 220222016917716.

The previous prime is 220222016917649. The next prime is 220222016917753. The reversal of 220222016917717 is 717719610222022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126834648643921 + 93387368273796 = 11262089^2 + 9663714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220222016917717 is a prime.

It is a super-4 number, since 4×220222016917717⁴ (a number of 58 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220222016917757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110111008458858 + 110111008458859.

It is an arithmetic number, because the mean of its divisors is an integer number (110111008458859).

Almost surely, 2^{220222016917717} is an apocalyptic number.

It is an amenable number.

220222016917717 is a deficient number, since it is larger than the sum of its proper divisors (1).

220222016917717 is an equidigital number, since it uses as much as digits as its factorization.

220222016917717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 592704, while the sum is 49.

The spelling of 220222016917717 in words is "two hundred twenty trillion, two hundred twenty-two billion, sixteen million, nine hundred seventeen thousand, seven hundred seventeen".