2216312055 has 24 divisors (see below), whose sum is σ = 3861123552. Its totient is φ = 1176028224.

The previous prime is 2216312051. The next prime is 2216312089. The reversal of 2216312055 is 5502136122.

It is a happy number.

2216312055 is a `hidden beast` number, since 2 + 2 + 1 + 631 + 20 + 5 + 5 = 666.

2216312055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2216312055 - 2² = 2216312051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216312051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116139 + ... + 133868.

It is an arithmetic number, because the mean of its divisors is an integer number (160880148).

Almost surely, 2^2216312055 is an apocalyptic number.

2216312055 is a deficient number, since it is larger than the sum of its proper divisors (1644811497).

2216312055 is a wasteful number, since it uses less digits than its factorization.

2216312055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250215 (or 250212 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 2216312055 is about 47077.7235537149. The cubic root of 2216312055 is about 1303.7979771513.

Adding to 2216312055 its reverse (5502136122), we get a palindrome (7718448177).

The spelling of 2216312055 in words is "two billion, two hundred sixteen million, three hundred twelve thousand, fifty-five".