71212224517 has 16 divisors (see below), whose sum is σ = 81615313152. Its totient is φ = 60866749440.

The previous prime is 71212224509. The next prime is 71212224583. The reversal of 71212224517 is 71542221217.

It is not a de Polignac number, because 71212224517 - 2³ = 71212224509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71212221517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9240888 + ... + 9248590.

It is an arithmetic number, because the mean of its divisors is an integer number (5100957072).

Almost surely, 2^71212224517 is an apocalyptic number.

It is an amenable number.

71212224517 is a deficient number, since it is larger than the sum of its proper divisors (10403088635).

71212224517 is a wasteful number, since it uses less digits than its factorization.

71212224517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11268.

The product of its digits is 15680, while the sum is 34.

The spelling of 71212224517 in words is "seventy-one billion, two hundred twelve million, two hundred twenty-four thousand, five hundred seventeen".