3220021001 has 2 divisors, whose sum is σ = 3220021002. Its totient is φ = 3220021000.

The previous prime is 3220020967. The next prime is 3220021027. The reversal of 3220021001 is 1001200223.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3215003401 + 5017600 = 56701^2 + 2240^2 .

It is a cyclic number.

It is not a de Polignac number, because 3220021001 - 2¹⁴ = 3220004617 is a prime.

It is not a weakly prime, because it can be changed into another prime (3220024001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610010500 + 1610010501.

It is an arithmetic number, because the mean of its divisors is an integer number (1610010501).

Almost surely, 2^3220021001 is an apocalyptic number.

It is an amenable number.

3220021001 is a deficient number, since it is larger than the sum of its proper divisors (1).

3220021001 is an equidigital number, since it uses as much as digits as its factorization.

3220021001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 3220021001 is about 56745.2288831405. The cubic root of 3220021001 is about 1476.6794622445.

Adding to 3220021001 its reverse (1001200223), we get a palindrome (4221221224).

The spelling of 3220021001 in words is "three billion, two hundred twenty million, twenty-one thousand, one".