3303220021 has 2 divisors, whose sum is σ = 3303220022. Its totient is φ = 3303220020.

The previous prime is 3303220009. The next prime is 3303220027. The reversal of 3303220021 is 1200223033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2094892900 + 1208327121 = 45770^2 + 34761^2 .

It is a cyclic number.

It is not a de Polignac number, because 3303220021 - 2¹⁵ = 3303187253 is a prime.

It is a super-2 number, since 2×3303220021² = 21822525014270480882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3303219977 and 3303220004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3303220027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1651610010 + 1651610011.

It is an arithmetic number, because the mean of its divisors is an integer number (1651610011).

Almost surely, 2^3303220021 is an apocalyptic number.

It is an amenable number.

3303220021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3303220021 is an equidigital number, since it uses as much as digits as its factorization.

3303220021 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 16.

The square root of 3303220021 is about 57473.6463172470. The cubic root of 3303220021 is about 1489.2896364613.

Adding to 3303220021 its reverse (1200223033), we get a palindrome (4503443054).

The spelling of 3303220021 in words is "three billion, three hundred three million, two hundred twenty thousand, twenty-one".