2121012020333 has 2 divisors, whose sum is σ = 2121012020334. Its totient is φ = 2121012020332.

The previous prime is 2121012020297. The next prime is 2121012020389. The reversal of 2121012020333 is 3330202101212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1751752837444 + 369259182889 = 1323538^2 + 607667^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121012020333 - 2¹⁶ = 2121011954797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121012080333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060506010166 + 1060506010167.

It is an arithmetic number, because the mean of its divisors is an integer number (1060506010167).

Almost surely, 2^{2121012020333} is an apocalyptic number.

It is an amenable number.

2121012020333 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121012020333 is an equidigital number, since it uses as much as digits as its factorization.

2121012020333 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 2121012020333 its reverse (3330202101212), we get a palindrome (5451214121545).

The spelling of 2121012020333 in words is "two trillion, one hundred twenty-one billion, twelve million, twenty thousand, three hundred thirty-three".