2216311272 has 96 divisors (see below), whose sum is σ = 7081351680. Its totient is φ = 612800640.

The previous prime is 2216311177. The next prime is 2216311277. The reversal of 2216311272 is 2721136122.

2216311272 is a `hidden beast` number, since 2 + 2 + 1 + 631 + 1 + 27 + 2 = 666.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2216311277) 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 23 ways as a sum of consecutive naturals, for example, 55303 + ... + 86550.

It is an arithmetic number, because the mean of its divisors is an integer number (73764080).

Almost surely, 2^2216311272 is an apocalyptic number.

It is an amenable number.

2216311272 is an abundant number, since it is smaller than the sum of its proper divisors (4865040408).

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

2216311272 is a wasteful number, since it uses less digits than its factorization.

2216311272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141903 (or 141896 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 2216311272 is about 47077.7152376791. The cubic root of 2216311272 is about 1303.7978236118.

Adding to 2216311272 its reverse (2721136122), we get a palindrome (4937447394).

The spelling of 2216311272 in words is "two billion, two hundred sixteen million, three hundred eleven thousand, two hundred seventy-two".