21144422103032 has 8 divisors (see below), whose sum is σ = 39645791443200. Its totient is φ = 10572211051512.

The previous prime is 21144422102981. The next prime is 21144422103097. The reversal of 21144422103032 is 23030122444112.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 21144422102986 and 21144422103004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321526381432 + ... + 1321526381447.

It is an arithmetic number, because the mean of its divisors is an integer number (4955723930400).

Almost surely, 2^{21144422103032} is an apocalyptic number.

It is an amenable number.

21144422103032 is a deficient number, since it is larger than the sum of its proper divisors (18501369340168).

21144422103032 is a wasteful number, since it uses less digits than its factorization.

21144422103032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643052762885 (or 2643052762881 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 21144422103032 its reverse (23030122444112), we get a palindrome (44174544547144).

The spelling of 21144422103032 in words is "twenty-one trillion, one hundred forty-four billion, four hundred twenty-two million, one hundred three thousand, thirty-two".