33021010020121 has 2 divisors, whose sum is σ = 33021010020122. Its totient is φ = 33021010020120.

The previous prime is 33021010020109. The next prime is 33021010020139. The reversal of 33021010020121 is 12102001012033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29842063658521 + 3178946361600 = 5462789^2 + 1782960^2 .

It is a cyclic number.

It is not a de Polignac number, because 33021010020121 - 2¹⁹ = 33021009495833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33021010020095 and 33021010020104.

It is not a weakly prime, because it can be changed into another prime (33021010020151) 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 as a sum of consecutive naturals, namely, 16510505010060 + 16510505010061.

It is an arithmetic number, because the mean of its divisors is an integer number (16510505010061).

Almost surely, 2^{33021010020121} is an apocalyptic number.

It is an amenable number.

33021010020121 is a deficient number, since it is larger than the sum of its proper divisors (1).

33021010020121 is an equidigital number, since it uses as much as digits as its factorization.

33021010020121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 33021010020121 its reverse (12102001012033), we get a palindrome (45123011032154).

The spelling of 33021010020121 in words is "thirty-three trillion, twenty-one billion, ten million, twenty thousand, one hundred twenty-one".