21442021435132 has 24 divisors (see below), whose sum is σ = 37895625032832. Its totient is φ = 10614703176000.

The previous prime is 21442021435127. The next prime is 21442021435171. The reversal of 21442021435132 is 23153412024412.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 29379157 + ... + 30100147.

It is an arithmetic number, because the mean of its divisors is an integer number (1578984376368).

Almost surely, 2^{21442021435132} is an apocalyptic number.

It is an amenable number.

21442021435132 is a deficient number, since it is larger than the sum of its proper divisors (16453603597700).

21442021435132 is a wasteful number, since it uses less digits than its factorization.

21442021435132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794709 (or 794707 counting only the distinct ones).

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

Adding to 21442021435132 its reverse (23153412024412), we get a palindrome (44595433459544).

The spelling of 21442021435132 in words is "twenty-one trillion, four hundred forty-two billion, twenty-one million, four hundred thirty-five thousand, one hundred thirty-two".