2211213133 has 4 divisors (see below), whose sum is σ = 2211307420. Its totient is φ = 2211118848.

The previous prime is 2211213119. The next prime is 2211213161. The reversal of 2211213133 is 3313121122.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 1043419204 + 1167793929 = 32302^2 + 34173^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211213133 - 2²⁵ = 2177658701 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2211213133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211211133) 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, 18541 + ... + 69037.

It is an arithmetic number, because the mean of its divisors is an integer number (552826855).

Almost surely, 2^2211213133 is an apocalyptic number.

It is an amenable number.

2211213133 is a deficient number, since it is larger than the sum of its proper divisors (94287).

2211213133 is an equidigital number, since it uses as much as digits as its factorization.

2211213133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94286.

The product of its digits is 216, while the sum is 19.

The square root of 2211213133 is about 47023.5380740327. The cubic root of 2211213133 is about 1302.7973555891.

Adding to 2211213133 its reverse (3313121122), we get a palindrome (5524334255).

It can be divided in two parts, 22112 and 13133, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 2211213133 in words is "two billion, two hundred eleven million, two hundred thirteen thousand, one hundred thirty-three".