2216523312 has 80 divisors (see below), whose sum is σ = 6567516160. Its totient is φ = 715003200.

The previous prime is 2216523311. The next prime is 2216523313. The reversal of 2216523312 is 2133256122.

It is a happy number.

2216523312 is a `hidden beast` number, since 2 + 2 + 1 + 652 + 3 + 3 + 1 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (2216523311) and next prime (2216523313).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2216523311) 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 15 ways as a sum of consecutive naturals, for example, 69364 + ... + 96147.

It is an arithmetic number, because the mean of its divisors is an integer number (82093952).

Almost surely, 2^2216523312 is an apocalyptic number.

It is an amenable number.

2216523312 is an abundant number, since it is smaller than the sum of its proper divisors (4350992848).

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

2216523312 is a wasteful number, since it uses less digits than its factorization.

2216523312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165559 (or 165547 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 2216523312 is about 47079.9672047464. The cubic root of 2216523312 is about 1303.8394014771.

Adding to 2216523312 its reverse (2133256122), we get a palindrome (4349779434).

The spelling of 2216523312 in words is "two billion, two hundred sixteen million, five hundred twenty-three thousand, three hundred twelve".