21300221130 has 32 divisors (see below), whose sum is σ = 53811086400. Its totient is φ = 5381108352.

The previous prime is 21300221101. The next prime is 21300221141. The reversal of 21300221130 is 3112200312.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 15 ways as a sum of consecutive naturals, for example, 18683835 + ... + 18684974.

It is an arithmetic number, because the mean of its divisors is an integer number (1681596450).

Almost surely, 2^21300221130 is an apocalyptic number.

21300221130 is an abundant number, since it is smaller than the sum of its proper divisors (32510865270).

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

21300221130 is a wasteful number, since it uses less digits than its factorization.

21300221130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37368838.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21300221130 its reverse (3112200312), we get a palindrome (24412421442).

The spelling of 21300221130 in words is "twenty-one billion, three hundred million, two hundred twenty-one thousand, one hundred thirty".