2216111065 has 16 divisors (see below), whose sum is σ = 3171379968. Its totient is φ = 1453548096.

The previous prime is 2216111063. The next prime is 2216111083. The reversal of 2216111065 is 5601116122.

It is a happy number.

It is not a de Polignac number, because 2216111065 - 2¹ = 2216111063 is a prime.

It is a super-2 number, since 2×2216111065² = 9822296504830868450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216111063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1375662 + ... + 1377271.

It is an arithmetic number, because the mean of its divisors is an integer number (198211248).

Almost surely, 2^2216111065 is an apocalyptic number.

It is an amenable number.

2216111065 is a deficient number, since it is larger than the sum of its proper divisors (955268903).

2216111065 is a wasteful number, since it uses less digits than its factorization.

2216111065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752968.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 2216111065 is about 47075.5888439008. The cubic root of 2216111065 is about 1303.7585635863.

Adding to 2216111065 its reverse (5601116122), we get a palindrome (7817227187).

The spelling of 2216111065 in words is "two billion, two hundred sixteen million, one hundred eleven thousand, sixty-five".