71222122122217 has 16 divisors (see below), whose sum is σ = 77909906744064. Its totient is φ = 64569971664000.

The previous prime is 71222122122163. The next prime is 71222122122223.

71222122122217 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 71222122122217 - 2²⁷ = 71221987904489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71222122122247) 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, 8109367 + ... + 14429347.

It is an arithmetic number, because the mean of its divisors is an integer number (4869369171504).

Almost surely, 2^{71222122122217} is an apocalyptic number.

It is an amenable number.

71222122122217 is a deficient number, since it is larger than the sum of its proper divisors (6687784621847).

71222122122217 is a wasteful number, since it uses less digits than its factorization.

71222122122217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6322800.

The product of its digits is 12544, while the sum is 34.

It can be divided in two parts, 7122212 and 2122217, that added together give a palindrome (9244429).

The spelling of 71222122122217 in words is "seventy-one trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred seventeen".