71001122332211 has 4 divisors (see below), whose sum is σ = 71132362854624. Its totient is φ = 70869881809800.

The previous prime is 71001122332171. The next prime is 71001122332247. The reversal of 71001122332211 is 11223322110017.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71001122332211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71001122332711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65620260395 + ... + 65620261476.

It is an arithmetic number, because the mean of its divisors is an integer number (17783090713656).

Almost surely, 2^{71001122332211} is an apocalyptic number.

71001122332211 is a deficient number, since it is larger than the sum of its proper divisors (131240522413).

71001122332211 is a wasteful number, since it uses less digits than its factorization.

71001122332211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131240522412.

The product of its (nonzero) digits is 1008, while the sum is 26.

Adding to 71001122332211 its reverse (11223322110017), we get a palindrome (82224444442228).

The spelling of 71001122332211 in words is "seventy-one trillion, one billion, one hundred twenty-two million, three hundred thirty-two thousand, two hundred eleven".