2216188481 has 64 divisors (see below), whose sum is σ = 2724986880. Its totient is φ = 1783192320.

The previous prime is 2216188463. The next prime is 2216188537. The reversal of 2216188481 is 1848816122.

It is not a de Polignac number, because 2216188481 - 2⁶ = 2216188417 is a prime.

It is a super-2 number, since 2×2216188481² = 9822982766634174722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216188421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17450240 + ... + 17450366.

It is an arithmetic number, because the mean of its divisors is an integer number (42577920).

Almost surely, 2^2216188481 is an apocalyptic number.

It is an amenable number.

2216188481 is a deficient number, since it is larger than the sum of its proper divisors (508798399).

2216188481 is a wasteful number, since it uses less digits than its factorization.

2216188481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286.

The product of its digits is 49152, while the sum is 41.

The square root of 2216188481 is about 47076.4110887820. The cubic root of 2216188481 is about 1303.7737449250.

The spelling of 2216188481 in words is "two billion, two hundred sixteen million, one hundred eighty-eight thousand, four hundred eighty-one".