7211730899 has 2 divisors, whose sum is σ = 7211730900. Its totient is φ = 7211730898.

The previous prime is 7211730881. The next prime is 7211730919. The reversal of 7211730899 is 9980371127.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7211730899 - 2²⁴ = 7194953683 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (7211735899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3605865449 + 3605865450.

It is an arithmetic number, because the mean of its divisors is an integer number (3605865450).

Almost surely, 2^7211730899 is an apocalyptic number.

7211730899 is a deficient number, since it is larger than the sum of its proper divisors (1).

7211730899 is an equidigital number, since it uses as much as digits as its factorization.

7211730899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 7211730899 is about 84921.9105943808. The cubic root of 7211730899 is about 1932.0269092916.

The spelling of 7211730899 in words is "seven billion, two hundred eleven million, seven hundred thirty thousand, eight hundred ninety-nine".