2213221311 has 24 divisors (see below), whose sum is σ = 3697599360. Its totient is φ = 1249457616.

The previous prime is 2213221271. The next prime is 2213221349. The reversal of 2213221311 is 1131223122.

It is not a de Polignac number, because 2213221311 - 2⁷ = 2213221183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213229311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 206401 + ... + 216858.

It is an arithmetic number, because the mean of its divisors is an integer number (154066640).

Almost surely, 2^2213221311 is an apocalyptic number.

2213221311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2213221311 is a deficient number, since it is larger than the sum of its proper divisors (1484378049).

2213221311 is a wasteful number, since it uses less digits than its factorization.

2213221311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423355 (or 423352 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2213221311 is about 47044.8861301630. The cubic root of 2213221311 is about 1303.1916274544.

Adding to 2213221311 its reverse (1131223122), we get a palindrome (3344444433).

The spelling of 2213221311 in words is "two billion, two hundred thirteen million, two hundred twenty-one thousand, three hundred eleven".