2211133 has 4 divisors (see below), whose sum is σ = 2214108. Its totient is φ = 2208160.

The previous prime is 2211127. The next prime is 2211161. The reversal of 2211133 is 3311122.

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 1483524 + 727609 = 1218^2 + 853^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211133 is a prime.

It is a Duffinian number.

2211133 is a lucky number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211233) 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 3 ways as a sum of consecutive naturals, for example, 735 + ... + 2227.

It is an arithmetic number, because the mean of its divisors is an integer number (553527).

2^2211133 is an apocalyptic number.

It is an amenable number.

2211133 is a deficient number, since it is larger than the sum of its proper divisors (2975).

2211133 is a wasteful number, since it uses less digits than its factorization.

2211133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974.

The product of its digits is 36, while the sum is 13.

The square root of 2211133 is about 1486.9878950415. The cubic root of 2211133 is about 130.2781617875.

Adding to 2211133 its product of digits (36), we get a square (2211169 = 1487²).

Adding to 2211133 its reverse (3311122), we get a palindrome (5522255).

The spelling of 2211133 in words is "two million, two hundred eleven thousand, one hundred thirty-three".