13217322216658 has 8 divisors (see below), whose sum is σ = 22658266657152. Its totient is φ = 5664566664276.

The previous prime is 13217322216649. The next prime is 13217322216697. The reversal of 13217322216658 is 85661222371231.

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

It is a super-2 number, since 2×13217322216658² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472047222010 + ... + 472047222037.

It is an arithmetic number, because the mean of its divisors is an integer number (2832283332144).

Almost surely, 2^{13217322216658} is an apocalyptic number.

13217322216658 is a deficient number, since it is larger than the sum of its proper divisors (9440944440494).

13217322216658 is an equidigital number, since it uses as much as digits as its factorization.

13217322216658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944094444056.

The product of its digits is 1451520, while the sum is 49.

Adding to 13217322216658 its reverse (85661222371231), we get a palindrome (98878544587889).

The spelling of 13217322216658 in words is "thirteen trillion, two hundred seventeen billion, three hundred twenty-two million, two hundred sixteen thousand, six hundred fifty-eight".