21310130222 has 12 divisors (see below), whose sum is σ = 32659783080. Its totient is φ = 10428359436.

The previous prime is 21310130183. The next prime is 21310130239. The reversal of 21310130222 is 22203101312.

It is a self number, because there is not a number n which added to its sum of digits gives 21310130222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2407322 + ... + 2416157.

It is an arithmetic number, because the mean of its divisors is an integer number (2721648590).

Almost surely, 2^21310130222 is an apocalyptic number.

21310130222 is a deficient number, since it is larger than the sum of its proper divisors (11349652858).

21310130222 is an equidigital number, since it uses as much as digits as its factorization.

21310130222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4823575 (or 4823528 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21310130222 its reverse (22203101312), we get a palindrome (43513231534).

The spelling of 21310130222 in words is "twenty-one billion, three hundred ten million, one hundred thirty thousand, two hundred twenty-two".