22032032021 has 2 divisors, whose sum is σ = 22032032022. Its totient is φ = 22032032020.

The previous prime is 22032032017. The next prime is 22032032039. The reversal of 22032032021 is 12023023022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16439086225 + 5592945796 = 128215^2 + 74786^2 .

It is a cyclic number.

It is not a de Polignac number, because 22032032021 - 2² = 22032032017 is a prime.

It is a Sophie Germain 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 (22032032621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11016016010 + 11016016011.

It is an arithmetic number, because the mean of its divisors is an integer number (11016016011).

Almost surely, 2^22032032021 is an apocalyptic number.

It is an amenable number.

22032032021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22032032021 is an equidigital number, since it uses as much as digits as its factorization.

22032032021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 22032032021 its reverse (12023023022), we get a palindrome (34055055043).

The spelling of 22032032021 in words is "twenty-two billion, thirty-two million, thirty-two thousand, twenty-one".