7211440870 has 32 divisors (see below), whose sum is σ = 13052482560. Its totient is φ = 2868633600.

The previous prime is 7211440829. The next prime is 7211440871. The reversal of 7211440870 is 780441127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7211440871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2680486 + ... + 2683174.

It is an arithmetic number, because the mean of its divisors is an integer number (407890080).

Almost surely, 2^7211440870 is an apocalyptic number.

7211440870 is a deficient number, since it is larger than the sum of its proper divisors (5841041690).

7211440870 is a wasteful number, since it uses less digits than its factorization.

7211440870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 7211440870 is about 84920.2029554805. The cubic root of 7211440870 is about 1932.0010092984.

Adding to 7211440870 its reverse (780441127), we get a palindrome (7991881997).

The spelling of 7211440870 in words is "seven billion, two hundred eleven million, four hundred forty thousand, eight hundred seventy".