17120229217 has 12 divisors (see below), whose sum is σ = 21447320916. Its totient is φ = 13545675360.

The previous prime is 17120229211. The next prime is 17120229221. The reversal of 17120229217 is 71292202171.

It can be written as a sum of positive squares in 2 ways, for example, as 3580346896 + 13539882321 = 59836^2 + 116361^2 .

It is not a de Polignac number, because 17120229217 - 2⁷ = 17120229089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (17120229211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13437534 + ... + 13438807.

It is an arithmetic number, because the mean of its divisors is an integer number (1787276743).

Almost surely, 2^17120229217 is an apocalyptic number.

It is an amenable number.

17120229217 is a deficient number, since it is larger than the sum of its proper divisors (4327091699).

17120229217 is a wasteful number, since it uses less digits than its factorization.

17120229217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26876368 (or 26876361 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 34.

The spelling of 17120229217 in words is "seventeen billion, one hundred twenty million, two hundred twenty-nine thousand, two hundred seventeen".