21301221130 has 16 divisors (see below), whose sum is σ = 43819655040. Its totient is φ = 7303275792.

The previous prime is 21301221113. The next prime is 21301221163. The reversal of 21301221130 is 3112210312.

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, 152151510 + ... + 152151649.

It is an arithmetic number, because the mean of its divisors is an integer number (2738728440).

Almost surely, 2^21301221130 is an apocalyptic number.

21301221130 is an abundant number, since it is smaller than the sum of its proper divisors (22518433910).

21301221130 is a wasteful number, since it uses less digits than its factorization.

21301221130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304303173.

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

Adding to 21301221130 its reverse (3112210312), we get a palindrome (24413431442).

The spelling of 21301221130 in words is "twenty-one billion, three hundred one million, two hundred twenty-one thousand, one hundred thirty".