71122267211 has 2 divisors, whose sum is σ = 71122267212. Its totient is φ = 71122267210.

The previous prime is 71122267129. The next prime is 71122267219. The reversal of 71122267211 is 11276222117.

It is a strong prime.

It is an emirp because it is prime and its reverse (11276222117) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71122267211 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (71122267219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35561133605 + 35561133606.

It is an arithmetic number, because the mean of its divisors is an integer number (35561133606).

Almost surely, 2^71122267211 is an apocalyptic number.

71122267211 is a deficient number, since it is larger than the sum of its proper divisors (1).

71122267211 is an equidigital number, since it uses as much as digits as its factorization.

71122267211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704, while the sum is 32.

Adding to 71122267211 its reverse (11276222117), we get a palindrome (82398489328).

The spelling of 71122267211 in words is "seventy-one billion, one hundred twenty-two million, two hundred sixty-seven thousand, two hundred eleven".