7221508108 has 12 divisors (see below), whose sum is σ = 12638241000. Its totient is φ = 3610582112.

The previous prime is 7221508103. The next prime is 7221508117. The reversal of 7221508108 is 8018051227.

It is not an unprimeable number, because it can be changed into a prime (7221508103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121143 + ... + 170641.

It is an arithmetic number, because the mean of its divisors is an integer number (1053186750).

Almost surely, 2^7221508108 is an apocalyptic number.

It is an amenable number.

7221508108 is a deficient number, since it is larger than the sum of its proper divisors (5416732892).

7221508108 is a wasteful number, since it uses less digits than its factorization.

7221508108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85976 (or 85974 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 7221508108 is about 84979.4569763775. The cubic root of 7221508108 is about 1932.8996216833.

The spelling of 7221508108 in words is "seven billion, two hundred twenty-one million, five hundred eight thousand, one hundred eight".