7211440871 has 2 divisors, whose sum is σ = 7211440872. Its totient is φ = 7211440870.

The previous prime is 7211440829. The next prime is 7211440889. The reversal of 7211440871 is 1780441127.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7211440871 - 2¹⁴ = 7211424487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7211440571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3605720435 + 3605720436.

It is an arithmetic number, because the mean of its divisors is an integer number (3605720436).

Almost surely, 2^7211440871 is an apocalyptic number.

7211440871 is a deficient number, since it is larger than the sum of its proper divisors (1).

7211440871 is an equidigital number, since it uses as much as digits as its factorization.

7211440871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 7211440871 is about 84920.2029613684. The cubic root of 7211440871 is about 1932.0010093877.

Adding to 7211440871 its reverse (1780441127), we get a palindrome (8991881998).

The spelling of 7211440871 in words is "seven billion, two hundred eleven million, four hundred forty thousand, eight hundred seventy-one".