21220202012033 has 2 divisors, whose sum is σ = 21220202012034. Its totient is φ = 21220202012032.

The previous prime is 21220202011997. The next prime is 21220202012047. The reversal of 21220202012033 is 33021020202212.

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., 18699674273344 + 2520527738689 = 4324312^2 + 1587617^2 .

It is a cyclic number.

It is not a de Polignac number, because 21220202012033 - 2⁸ = 21220202011777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21220202011996 and 21220202012014.

It is not a weakly prime, because it can be changed into another prime (21220202012083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10610101006016 + 10610101006017.

It is an arithmetic number, because the mean of its divisors is an integer number (10610101006017).

Almost surely, 2^{21220202012033} is an apocalyptic number.

It is an amenable number.

21220202012033 is a deficient number, since it is larger than the sum of its proper divisors (1).

21220202012033 is an equidigital number, since it uses as much as digits as its factorization.

21220202012033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21220202012033 its reverse (33021020202212), we get a palindrome (54241222214245).

The spelling of 21220202012033 in words is "twenty-one trillion, two hundred twenty billion, two hundred two million, twelve thousand, thirty-three".