21373602770224 has 80 divisors (see below), whose sum is σ = 42906286393344. Its totient is φ = 10303592371200.

The previous prime is 21373602770209. The next prime is 21373602770227. The reversal of 21373602770224 is 42207720637312.

It is not an unprimeable number, because it can be changed into a prime (21373602770227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 999549837 + ... + 999571219.

Almost surely, 2^{21373602770224} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21373602770224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21453143196672).

21373602770224 is an abundant number, since it is smaller than the sum of its proper divisors (21532683623120).

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

21373602770224 is a wasteful number, since it uses less digits than its factorization.

21373602770224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28826 (or 28820 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 46.

The spelling of 21373602770224 in words is "twenty-one trillion, three hundred seventy-three billion, six hundred two million, seven hundred seventy thousand, two hundred twenty-four".