22532432821 has 2 divisors, whose sum is σ = 22532432822. Its totient is φ = 22532432820.

The previous prime is 22532432779. The next prime is 22532432833. The reversal of 22532432821 is 12823423522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22359220900 + 173211921 = 149530^2 + 13161^2 .

It is a cyclic number.

It is not a de Polignac number, because 22532432821 - 2¹⁷ = 22532301749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22532439821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11266216410 + 11266216411.

It is an arithmetic number, because the mean of its divisors is an integer number (11266216411).

Almost surely, 2^22532432821 is an apocalyptic number.

It is an amenable number.

22532432821 is a deficient number, since it is larger than the sum of its proper divisors (1).

22532432821 is an equidigital number, since it uses as much as digits as its factorization.

22532432821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 34.

The spelling of 22532432821 in words is "twenty-two billion, five hundred thirty-two million, four hundred thirty-two thousand, eight hundred twenty-one".