32442100021 has 2 divisors, whose sum is σ = 32442100022. Its totient is φ = 32442100020.

The previous prime is 32442099979. The next prime is 32442100027. The reversal of 32442100021 is 12000124423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32367967921 + 74132100 = 179911^2 + 8610^2 .

It is a cyclic number.

It is not a de Polignac number, because 32442100021 - 2²⁷ = 32307882293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32442100027) 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, 16221050010 + 16221050011.

It is an arithmetic number, because the mean of its divisors is an integer number (16221050011).

Almost surely, 2^32442100021 is an apocalyptic number.

It is an amenable number.

32442100021 is a deficient number, since it is larger than the sum of its proper divisors (1).

32442100021 is an equidigital number, since it uses as much as digits as its factorization.

32442100021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 32442100021 its reverse (12000124423), we get a palindrome (44442224444).

The spelling of 32442100021 in words is "thirty-two billion, four hundred forty-two million, one hundred thousand, twenty-one".