2218211053 has 4 divisors (see below), whose sum is σ = 2218317948. Its totient is φ = 2218104160.

The previous prime is 2218211041. The next prime is 2218211063. The reversal of 2218211053 is 3501128122.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3501128122 = 2 ⋅1750564061.

It can be written as a sum of positive squares in 2 ways, for example, as 1798862569 + 419348484 = 42413^2 + 20478^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2218211053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218211003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11176 + ... + 67537.

It is an arithmetic number, because the mean of its divisors is an integer number (554579487).

Almost surely, 2^2218211053 is an apocalyptic number.

It is an amenable number.

2218211053 is a deficient number, since it is larger than the sum of its proper divisors (106895).

2218211053 is an equidigital number, since it uses as much as digits as its factorization.

2218211053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106894.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 2218211053 is about 47097.8879887411. The cubic root of 2218211053 is about 1304.1702476744.

Adding to 2218211053 its reverse (3501128122), we get a palindrome (5719339175).

The spelling of 2218211053 in words is "two billion, two hundred eighteen million, two hundred eleven thousand, fifty-three".