7221306732217 has 8 divisors (see below), whose sum is σ = 7470347702400. Its totient is φ = 6972267788304.

The previous prime is 7221306732209. The next prime is 7221306732221. The reversal of 7221306732217 is 7122376031227.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7221306732217 - 2³ = 7221306732209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7221306732287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11867488 + ... + 12461134.

It is an arithmetic number, because the mean of its divisors is an integer number (933793462800).

Almost surely, 2^{7221306732217} is an apocalyptic number.

It is an amenable number.

7221306732217 is a deficient number, since it is larger than the sum of its proper divisors (249040970183).

7221306732217 is a wasteful number, since it uses less digits than its factorization.

7221306732217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013135.

The product of its (nonzero) digits is 296352, while the sum is 43.

The spelling of 7221306732217 in words is "seven trillion, two hundred twenty-one billion, three hundred six million, seven hundred thirty-two thousand, two hundred seventeen".