2216240845 has 96 divisors (see below), whose sum is σ = 3578359680. Its totient is φ = 1302013440.

The previous prime is 2216240827. The next prime is 2216240849. The reversal of 2216240845 is 5480426122.

It is not a de Polignac number, because 2216240845 - 2⁹ = 2216240333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2216240845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216240849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3206950 + ... + 3207640.

It is an arithmetic number, because the mean of its divisors is an integer number (37274580).

Almost surely, 2^2216240845 is an apocalyptic number.

It is an amenable number.

2216240845 is a deficient number, since it is larger than the sum of its proper divisors (1362118835).

2216240845 is a wasteful number, since it uses less digits than its factorization.

2216240845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 2216240845 is about 47076.9672451402. The cubic root of 2216240845 is about 1303.7840133462.

Adding to 2216240845 its reverse (5480426122), we get a palindrome (7696666967).

The spelling of 2216240845 in words is "two billion, two hundred sixteen million, two hundred forty thousand, eight hundred forty-five".