2216522944 has 84 divisors (see below), whose sum is σ = 4572710184. Its totient is φ = 1065664512.

The previous prime is 2216522921. The next prime is 2216522947. The reversal of 2216522944 is 4492256122.

It is a super-2 number, since 2×2216522944² = 9825947922556854272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2216522947) 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, 22850704 + ... + 22850800.

It is an arithmetic number, because the mean of its divisors is an integer number (54437026).

Almost surely, 2^2216522944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2216522944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2286355092).

2216522944 is an abundant number, since it is smaller than the sum of its proper divisors (2356187240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2216522944 is an frugal number, since it uses more digits than its factorization.

2216522944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 239 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 2216522944 is about 47079.9632965023. The cubic root of 2216522944 is about 1303.8393293201.

The spelling of 2216522944 in words is "two billion, two hundred sixteen million, five hundred twenty-two thousand, nine hundred forty-four".