22033436021 has 2 divisors, whose sum is σ = 22033436022. Its totient is φ = 22033436020.

The previous prime is 22033436011. The next prime is 22033436023. The reversal of 22033436021 is 12063433022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11115484900 + 10917951121 = 105430^2 + 104489^2 .

It is a cyclic number.

It is not a de Polignac number, because 22033436021 - 2¹⁴ = 22033419637 is a prime.

It is a Sophie Germain prime.

Together with 22033436023, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22033436023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11016718010 + 11016718011.

It is an arithmetic number, because the mean of its divisors is an integer number (11016718011).

Almost surely, 2^22033436021 is an apocalyptic number.

It is an amenable number.

22033436021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22033436021 is an equidigital number, since it uses as much as digits as its factorization.

22033436021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 22033436021 its reverse (12063433022), we get a palindrome (34096869043).

The spelling of 22033436021 in words is "twenty-two billion, thirty-three million, four hundred thirty-six thousand, twenty-one".