7211440571 has 2 divisors, whose sum is σ = 7211440572. Its totient is φ = 7211440570.

The previous prime is 7211440549. The next prime is 7211440573. The reversal of 7211440571 is 1750441127.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7211440571 - 2³⁰ = 6137698747 is a prime.

Together with 7211440573, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7211440573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3605720285 + 3605720286.

It is an arithmetic number, because the mean of its divisors is an integer number (3605720286).

Almost surely, 2^7211440571 is an apocalyptic number.

7211440571 is a deficient number, since it is larger than the sum of its proper divisors (1).

7211440571 is an equidigital number, since it uses as much as digits as its factorization.

7211440571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 7211440571 is about 84920.2011950042. The cubic root of 7211440571 is about 1932.0009825969. Note that the first 3 decimals are identical.

Adding to 7211440571 its reverse (1750441127), we get a palindrome (8961881698).

The spelling of 7211440571 in words is "seven billion, two hundred eleven million, four hundred forty thousand, five hundred seventy-one".