2120333221 has 8 divisors (see below), whose sum is σ = 2157846264. Its totient is φ = 2082909120.

The previous prime is 2120333207. The next prime is 2120333227. The reversal of 2120333221 is 1223330212.

It can be written as a sum of positive squares in 4 ways, for example, as 100280196 + 2020053025 = 10014^2 + 44945^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2120333221 - 2¹³ = 2120325029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120333227) 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 in 7 ways as a sum of consecutive naturals, for example, 26811 + ... + 70423.

It is an arithmetic number, because the mean of its divisors is an integer number (269730783).

Almost surely, 2^2120333221 is an apocalyptic number.

It is an amenable number.

2120333221 is a deficient number, since it is larger than the sum of its proper divisors (37513043).

2120333221 is an equidigital number, since it uses as much as digits as its factorization.

2120333221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44471.

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

The square root of 2120333221 is about 46047.0761395336. The cubic root of 2120333221 is about 1284.6989601999.

Adding to 2120333221 its reverse (1223330212), we get a palindrome (3343663433).

The spelling of 2120333221 in words is "two billion, one hundred twenty million, three hundred thirty-three thousand, two hundred twenty-one".