71122208013 has 12 divisors (see below), whose sum is σ = 103131817308. Its totient is φ = 47230310400.

The previous prime is 71122208011. The next prime is 71122208081. The reversal of 71122208013 is 31080222117.

It can be written as a sum of positive squares in 2 ways, for example, as 50482001124 + 20640206889 = 224682^2 + 143667^2 .

It is not a de Polignac number, because 71122208013 - 2¹ = 71122208011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71122208011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15372138 + ... + 15376763.

It is an arithmetic number, because the mean of its divisors is an integer number (8594318109).

Almost surely, 2^71122208013 is an apocalyptic number.

It is an amenable number.

71122208013 is a deficient number, since it is larger than the sum of its proper divisors (32009609295).

71122208013 is a wasteful number, since it uses less digits than its factorization.

71122208013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30749164 (or 30749161 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The spelling of 71122208013 in words is "seventy-one billion, one hundred twenty-two million, two hundred eight thousand, thirteen".