21443505200022 has 16 divisors (see below), whose sum is σ = 43303389143040. Its totient is φ = 7078438609512.

The previous prime is 21443505200021. The next prime is 21443505200041. The reversal of 21443505200022 is 22000250534412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21443505200021) 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 in 7 ways as a sum of consecutive naturals, for example, 17349113622 + ... + 17349114857.

It is an arithmetic number, because the mean of its divisors is an integer number (2706461821440).

Almost surely, 2^{21443505200022} is an apocalyptic number.

21443505200022 is an abundant number, since it is smaller than the sum of its proper divisors (21859883943018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21443505200022 is a wasteful number, since it uses less digits than its factorization.

21443505200022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34698228587.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 21443505200022 its reverse (22000250534412), we get a palindrome (43443755734434).

The spelling of 21443505200022 in words is "twenty-one trillion, four hundred forty-three billion, five hundred five million, two hundred thousand, twenty-two".