220042043017 has 2 divisors, whose sum is σ = 220042043018. Its totient is φ = 220042043016.

The previous prime is 220042043009. The next prime is 220042043057. The reversal of 220042043017 is 710340240022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193139154576 + 26902888441 = 439476^2 + 164021^2 .

It is a cyclic number.

It is not a de Polignac number, because 220042043017 - 2³ = 220042043009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220042042982 and 220042043000.

It is not a weakly prime, because it can be changed into another prime (220042043057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110021021508 + 110021021509.

It is an arithmetic number, because the mean of its divisors is an integer number (110021021509).

Almost surely, 2^220042043017 is an apocalyptic number.

It is an amenable number.

220042043017 is a deficient number, since it is larger than the sum of its proper divisors (1).

220042043017 is an equidigital number, since it uses as much as digits as its factorization.

220042043017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 25.

Adding to 220042043017 its reverse (710340240022), we get a palindrome (930382283039).

The spelling of 220042043017 in words is "two hundred twenty billion, forty-two million, forty-three thousand, seventeen".