21022113130 has 16 divisors (see below), whose sum is σ = 40065674760. Its totient is φ = 7914207232.

The previous prime is 21022113071. The next prime is 21022113149. The reversal of 21022113130 is 3131122012.

It can be written as a sum of positive squares in 4 ways, for example, as 15895409929 + 5126703201 = 126077^2 + 71601^2 .

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, 61829575 + ... + 61829914.

Almost surely, 2^21022113130 is an apocalyptic number.

21022113130 is a deficient number, since it is larger than the sum of its proper divisors (19043561630).

21022113130 is a wasteful number, since it uses less digits than its factorization.

21022113130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123659513.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21022113130 its reverse (3131122012), we get a palindrome (24153235142).

The spelling of 21022113130 in words is "twenty-one billion, twenty-two million, one hundred thirteen thousand, one hundred thirty".