2233323221 has 2 divisors, whose sum is σ = 2233323222. Its totient is φ = 2233323220.

The previous prime is 2233323181. The next prime is 2233323233. The reversal of 2233323221 is 1223233322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1790220721 + 443102500 = 42311^2 + 21050^2 .

It is a cyclic number.

It is not a de Polignac number, because 2233323221 - 2¹⁴ = 2233306837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2233323241) 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, 1116661610 + 1116661611.

It is an arithmetic number, because the mean of its divisors is an integer number (1116661611).

Almost surely, 2^2233323221 is an apocalyptic number.

It is an amenable number.

2233323221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2233323221 is an equidigital number, since it uses as much as digits as its factorization.

2233323221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 23.

The square root of 2233323221 is about 47258.0492720552. The cubic root of 2233323221 is about 1307.1252191606.

Adding to 2233323221 its reverse (1223233322), we get a palindrome (3456556543).

It can be divided in two parts, 22333 and 23221, that added together give a palindrome (45554).

The spelling of 2233323221 in words is "two billion, two hundred thirty-three million, three hundred twenty-three thousand, two hundred twenty-one".