2217115162171 has 32 divisors (see below), whose sum is σ = 2829082726400. Its totient is φ = 1690200224640.

The previous prime is 2217115162153. The next prime is 2217115162187. The reversal of 2217115162171 is 1712615117122.

It is a cyclic number.

It is not a de Polignac number, because 2217115162171 - 2¹¹ = 2217115160123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2217115162171.

It is not an unprimeable number, because it can be changed into a prime (2217115163171) 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 in 31 ways as a sum of consecutive naturals, for example, 1070001 + ... + 2362018.

It is an arithmetic number, because the mean of its divisors is an integer number (88408835200).

Almost surely, 2^{2217115162171} is an apocalyptic number.

2217115162171 is a deficient number, since it is larger than the sum of its proper divisors (611967564229).

2217115162171 is a wasteful number, since it uses less digits than its factorization.

2217115162171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432299.

The product of its digits is 11760, while the sum is 37.

The spelling of 2217115162171 in words is "two trillion, two hundred seventeen billion, one hundred fifteen million, one hundred sixty-two thousand, one hundred seventy-one".