2216988813 has 12 divisors (see below), whose sum is σ = 3200860320. Its totient is φ = 1364300496.

The previous prime is 2216988811. The next prime is 2216988857. The reversal of 2216988813 is 3188896122.

It is not a de Polignac number, because 2216988813 - 2¹ = 2216988811 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216988811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2185873 + ... + 2186886.

It is an arithmetic number, because the mean of its divisors is an integer number (266738360).

Almost surely, 2^2216988813 is an apocalyptic number.

It is an amenable number.

2216988813 is a deficient number, since it is larger than the sum of its proper divisors (983871507).

2216988813 is a wasteful number, since it uses less digits than its factorization.

2216988813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372788 (or 4372775 counting only the distinct ones).

The product of its digits is 331776, while the sum is 48.

The square root of 2216988813 is about 47084.9106721039. The cubic root of 2216988813 is about 1303.9306699452.

The spelling of 2216988813 in words is "two billion, two hundred sixteen million, nine hundred eighty-eight thousand, eight hundred thirteen".