3321020302121 has 2 divisors, whose sum is σ = 3321020302122. Its totient is φ = 3321020302120.

The previous prime is 3321020302109. The next prime is 3321020302129. The reversal of 3321020302121 is 1212030201233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1778048899225 + 1542971402896 = 1333435^2 + 1242164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3321020302121 is a prime.

It is a super-2 number, since 2×3321020302121² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3321020302093 and 3321020302102.

It is not a weakly prime, because it can be changed into another prime (3321020302129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1660510151060 + 1660510151061.

It is an arithmetic number, because the mean of its divisors is an integer number (1660510151061).

Almost surely, 2^{3321020302121} is an apocalyptic number.

It is an amenable number.

3321020302121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3321020302121 is an equidigital number, since it uses as much as digits as its factorization.

3321020302121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 3321020302121 its reverse (1212030201233), we get a palindrome (4533050503354).

The spelling of 3321020302121 in words is "three trillion, three hundred twenty-one billion, twenty million, three hundred two thousand, one hundred twenty-one".