3200120330021 has 2 divisors, whose sum is σ = 3200120330022. Its totient is φ = 3200120330020.

The previous prime is 3200120329981. The next prime is 3200120330089. The reversal of 3200120330021 is 1200330210023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3146770879396 + 53349450625 = 1773914^2 + 230975^2 .

It is a cyclic number.

It is not a de Polignac number, because 3200120330021 - 2⁶ = 3200120329957 is a prime.

It is a super-2 number, since 2×3200120330021² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3200120530021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1600060165010 + 1600060165011.

It is an arithmetic number, because the mean of its divisors is an integer number (1600060165011).

Almost surely, 2^{3200120330021} is an apocalyptic number.

It is an amenable number.

3200120330021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3200120330021 is an equidigital number, since it uses as much as digits as its factorization.

3200120330021 is an evil number, because the sum of its binary digits is even.

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

Adding to 3200120330021 its reverse (1200330210023), we get a palindrome (4400450540044).

The spelling of 3200120330021 in words is "three trillion, two hundred billion, one hundred twenty million, three hundred thirty thousand, twenty-one".