711221011 has 2 divisors, whose sum is σ = 711221012. Its totient is φ = 711221010.

The previous prime is 711220999. The next prime is 711221039. The reversal of 711221011 is 110122117.

711221011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 711221011 - 2¹⁵ = 711188243 is a prime.

It is not a weakly prime, because it can be changed into another prime (711221051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355610505 + 355610506.

It is an arithmetic number, because the mean of its divisors is an integer number (355610506).

Almost surely, 2^711221011 is an apocalyptic number.

711221011 is a deficient number, since it is larger than the sum of its proper divisors (1).

711221011 is an equidigital number, since it uses as much as digits as its factorization.

711221011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 16.

The square root of 711221011 is about 26668.7272099739. The cubic root of 711221011 is about 892.6232460369.

Adding to 711221011 its reverse (110122117), we get a palindrome (821343128).

The spelling of 711221011 in words is "seven hundred eleven million, two hundred twenty-one thousand, eleven".