7317499221 has 12 divisors (see below), whose sum is σ = 10571046720. Its totient is φ = 4877721000.

The previous prime is 7317499177. The next prime is 7317499229. The reversal of 7317499221 is 1229947137.

It is a de Polignac number, because none of the positive numbers 2^k-7317499221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7317499229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31846 + ... + 125096.

It is an arithmetic number, because the mean of its divisors is an integer number (880920560).

Almost surely, 2^7317499221 is an apocalyptic number.

It is an amenable number.

7317499221 is a deficient number, since it is larger than the sum of its proper divisors (3253547499).

7317499221 is a wasteful number, since it uses less digits than its factorization.

7317499221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101976 (or 101973 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 7317499221 is about 85542.3826006735. The cubic root of 7317499221 is about 1941.4262390000.

The spelling of 7317499221 in words is "seven billion, three hundred seventeen million, four hundred ninety-nine thousand, two hundred twenty-one".