21002200133230 has 16 divisors (see below), whose sum is σ = 37804015375920. Its totient is φ = 8400867800832.

The previous prime is 21002200133219. The next prime is 21002200133261. The reversal of 21002200133230 is 3233100220012.

It is a junction number, because it is equal to n+sod(n) for n = 21002200133198 and 21002200133207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9347797 + ... + 11374783.

It is an arithmetic number, because the mean of its divisors is an integer number (2362750960995).

Almost surely, 2^{21002200133230} is an apocalyptic number.

21002200133230 is a deficient number, since it is larger than the sum of its proper divisors (16801815242690).

21002200133230 is a wasteful number, since it uses less digits than its factorization.

21002200133230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3063123.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21002200133230 its reverse (3233100220012), we get a palindrome (24235300353242).

The spelling of 21002200133230 in words is "twenty-one trillion, two billion, two hundred million, one hundred thirty-three thousand, two hundred thirty".