2217472516247 has 4 divisors (see below), whose sum is σ = 2247848852160. Its totient is φ = 2187096180336.

The previous prime is 2217472516201. The next prime is 2217472516291. The reversal of 2217472516247 is 7426152747122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2217472516247 - 2⁶ = 2217472516183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2217472516195 and 2217472516204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217472716247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15188167847 + ... + 15188167992.

It is an arithmetic number, because the mean of its divisors is an integer number (561962213040).

Almost surely, 2^{2217472516247} is an apocalyptic number.

2217472516247 is a deficient number, since it is larger than the sum of its proper divisors (30376335913).

2217472516247 is an equidigital number, since it uses as much as digits as its factorization.

2217472516247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30376335912.

The product of its digits is 2634240, while the sum is 50.

The spelling of 2217472516247 in words is "two trillion, two hundred seventeen billion, four hundred seventy-two million, five hundred sixteen thousand, two hundred forty-seven".