21330022131 has 12 divisors (see below), whose sum is σ = 33610944120. Its totient is φ = 12927286080.

The previous prime is 21330022121. The next prime is 21330022157. The reversal of 21330022131 is 13122003312.

21330022131 is a `hidden beast` number, since 213 + 300 + 22 + 131 = 666.

It is not a de Polignac number, because 21330022131 - 2³¹ = 19182538483 is a prime.

It is a super-2 number, since 2×21330022131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21330022121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107727286 + ... + 107727483.

It is an arithmetic number, because the mean of its divisors is an integer number (2800912010).

Almost surely, 2^21330022131 is an apocalyptic number.

21330022131 is a deficient number, since it is larger than the sum of its proper divisors (12280921989).

21330022131 is a wasteful number, since it uses less digits than its factorization.

21330022131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215454786 (or 215454783 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21330022131 its reverse (13122003312), we get a palindrome (34452025443).

The spelling of 21330022131 in words is "twenty-one billion, three hundred thirty million, twenty-two thousand, one hundred thirty-one".