71224222242217 has 16 divisors (see below), whose sum is σ = 81078020618112. Its totient is φ = 61933613512320.

The previous prime is 71224222242211. The next prime is 71224222242301.

71224222242217 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-71224222242217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71224222242217.

It is not an unprimeable number, because it can be changed into a prime (71224222242211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32762083 + ... + 34868359.

It is an arithmetic number, because the mean of its divisors is an integer number (5067376288632).

Almost surely, 2^{71224222242217} is an apocalyptic number.

It is an amenable number.

71224222242217 is a deficient number, since it is larger than the sum of its proper divisors (9853798375895).

71224222242217 is a wasteful number, since it uses less digits than its factorization.

71224222242217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239968.

The product of its digits is 200704, while the sum is 40.

It can be divided in two parts, 7122422 and 2242217, that added together give a palindrome (9364639).

The spelling of 71224222242217 in words is "seventy-one trillion, two hundred twenty-four billion, two hundred twenty-two million, two hundred forty-two thousand, two hundred seventeen".