21302102322 has 12 divisors (see below), whose sum is σ = 46154555070. Its totient is φ = 7100700768.

The previous prime is 21302102309. The next prime is 21302102323. The reversal of 21302102322 is 22320120312.

21302102322 is a `hidden beast` number, since 2 + 130 + 210 + 2 + 322 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19554945921 + 1747156401 = 139839^2 + 41799^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1183450129 = 21302102322 / (2 + 1 + 3 + 0 + 2 + 1 + 0 + 2 + 3 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 21302102295 and 21302102304.

It is not an unprimeable number, because it can be changed into a prime (21302102323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 591725047 + ... + 591725082.

Almost surely, 2^21302102322 is an apocalyptic number.

21302102322 is an abundant number, since it is smaller than the sum of its proper divisors (24852452748).

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

21302102322 is a wasteful number, since it uses less digits than its factorization.

21302102322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183450137 (or 1183450134 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21302102322 its reverse (22320120312), we get a palindrome (43622222634).

The spelling of 21302102322 in words is "twenty-one billion, three hundred two million, one hundred two thousand, three hundred twenty-two".