2213303221 has 2 divisors, whose sum is σ = 2213303222. Its totient is φ = 2213303220.

The previous prime is 2213303189. The next prime is 2213303231. The reversal of 2213303221 is 1223033122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1209300625 + 1004002596 = 34775^2 + 31686^2 .

It is a cyclic number.

It is not a de Polignac number, because 2213303221 - 2⁵ = 2213303189 is a prime.

It is a super-2 number, since 2×2213303221² = 9797422296177949682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2213303231) 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, 1106651610 + 1106651611.

It is an arithmetic number, because the mean of its divisors is an integer number (1106651611).

Almost surely, 2^2213303221 is an apocalyptic number.

It is an amenable number.

2213303221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2213303221 is an equidigital number, since it uses as much as digits as its factorization.

2213303221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2213303221 is about 47045.7566736895. The cubic root of 2213303221 is about 1303.2077040376.

Adding to 2213303221 its reverse (1223033122), we get a palindrome (3436336343).

The spelling of 2213303221 in words is "two billion, two hundred thirteen million, three hundred three thousand, two hundred twenty-one".