22033030330021 has 2 divisors, whose sum is σ = 22033030330022. Its totient is φ = 22033030330020.

The previous prime is 22033030330013. The next prime is 22033030330057. The reversal of 22033030330021 is 12003303033022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13043293402500 + 8989736927521 = 3611550^2 + 2998289^2 .

It is a cyclic number.

It is not a de Polignac number, because 22033030330021 - 2³ = 22033030330013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22033030329974 and 22033030330001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22033030330121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11016515165010 + 11016515165011.

It is an arithmetic number, because the mean of its divisors is an integer number (11016515165011).

Almost surely, 2^{22033030330021} is an apocalyptic number.

It is an amenable number.

22033030330021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22033030330021 is an equidigital number, since it uses as much as digits as its factorization.

22033030330021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 22033030330021 its reverse (12003303033022), we get a palindrome (34036333363043).

The spelling of 22033030330021 in words is "twenty-two trillion, thirty-three billion, thirty million, three hundred thirty thousand, twenty-one".