2103330221 has 2 divisors, whose sum is σ = 2103330222. Its totient is φ = 2103330220.

The previous prime is 2103330193. The next prime is 2103330223. The reversal of 2103330221 is 1220333012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2012509321 + 90820900 = 44861^2 + 9530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2103330221 is a prime.

Together with 2103330223, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2103330221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103330223) 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 as a sum of consecutive naturals, namely, 1051665110 + 1051665111.

It is an arithmetic number, because the mean of its divisors is an integer number (1051665111).

Almost surely, 2^2103330221 is an apocalyptic number.

It is an amenable number.

2103330221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103330221 is an equidigital number, since it uses as much as digits as its factorization.

2103330221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2103330221 is about 45862.0782455396. The cubic root of 2103330221 is about 1281.2557299573.

Adding to 2103330221 its reverse (1220333012), we get a palindrome (3323663233).

The spelling of 2103330221 in words is "two billion, one hundred three million, three hundred thirty thousand, two hundred twenty-one".