71111122201 has 16 divisors (see below), whose sum is σ = 81820166400. Its totient is φ = 60540226560.

The previous prime is 71111122151. The next prime is 71111122223. The reversal of 71111122201 is 10222111117.

It is a cyclic number.

It is not a de Polignac number, because 71111122201 - 2⁷ = 71111122073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71111122601) 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 15 ways as a sum of consecutive naturals, for example, 1521225 + ... + 1567273.

It is an arithmetic number, because the mean of its divisors is an integer number (5113760400).

Almost surely, 2^71111122201 is an apocalyptic number.

It is an amenable number.

71111122201 is a deficient number, since it is larger than the sum of its proper divisors (10709044199).

71111122201 is a wasteful number, since it uses less digits than its factorization.

71111122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47544.

The product of its (nonzero) digits is 56, while the sum is 19.

Adding to 71111122201 its reverse (10222111117), we get a palindrome (81333233318).

The spelling of 71111122201 in words is "seventy-one billion, one hundred eleven million, one hundred twenty-two thousand, two hundred one".