2211323321 has 2 divisors, whose sum is σ = 2211323322. Its totient is φ = 2211323320.

The previous prime is 2211323291. The next prime is 2211323333. The reversal of 2211323321 is 1233231122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1194670096 + 1016653225 = 34564^2 + 31885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211323321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2211323293 and 2211323302.

It is not a weakly prime, because it can be changed into another prime (2211323371) 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 as a sum of consecutive naturals, namely, 1105661660 + 1105661661.

It is an arithmetic number, because the mean of its divisors is an integer number (1105661661).

Almost surely, 2^2211323321 is an apocalyptic number.

It is an amenable number.

2211323321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211323321 is an equidigital number, since it uses as much as digits as its factorization.

2211323321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 20.

The square root of 2211323321 is about 47024.7096854409. The cubic root of 2211323321 is about 1302.8189953319.

Adding to 2211323321 its reverse (1233231122), we get a palindrome (3444554443).

The spelling of 2211323321 in words is "two billion, two hundred eleven million, three hundred twenty-three thousand, three hundred twenty-one".