2043330221 has 2 divisors, whose sum is σ = 2043330222. Its totient is φ = 2043330220.

The previous prime is 2043330173. The next prime is 2043330257. The reversal of 2043330221 is 1220333402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1947015625 + 96314596 = 44125^2 + 9814^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043330221 - 2¹⁸ = 2043068077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2043330193 and 2043330202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2043338221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021665110 + 1021665111.

It is an arithmetic number, because the mean of its divisors is an integer number (1021665111).

Almost surely, 2^2043330221 is an apocalyptic number.

It is an amenable number.

2043330221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043330221 is an equidigital number, since it uses as much as digits as its factorization.

2043330221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2043330221 is about 45203.2102952877. The cubic root of 2043330221 is about 1268.9548971226.

Adding to 2043330221 its reverse (1220333402), we get a palindrome (3263663623).

The spelling of 2043330221 in words is "two billion, forty-three million, three hundred thirty thousand, two hundred twenty-one".