222116817 has 8 divisors (see below), whose sum is σ = 318937024. Its totient is φ = 136687248.

The previous prime is 222116813. The next prime is 222116827. The reversal of 222116817 is 718611222.

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

It is not a de Polignac number, because 222116817 - 2² = 222116813 is a prime.

It is a super-2 number, since 2×222116817² = 98671760788422978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222116813) 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 7 ways as a sum of consecutive naturals, for example, 2847613 + ... + 2847690.

It is an arithmetic number, because the mean of its divisors is an integer number (39867128).

Almost surely, 2^222116817 is an apocalyptic number.

It is an amenable number.

222116817 is a deficient number, since it is larger than the sum of its proper divisors (96820207).

222116817 is a wasteful number, since it uses less digits than its factorization.

222116817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5695319.

The product of its digits is 2688, while the sum is 30.

The square root of 222116817 is about 14903.5840320374. The cubic root of 222116817 is about 605.6110821319.

The spelling of 222116817 in words is "two hundred twenty-two million, one hundred sixteen thousand, eight hundred seventeen".