21130113322 has 8 divisors (see below), whose sum is σ = 31700196900. Its totient is φ = 10563381024.

The previous prime is 21130113253. The next prime is 21130113349. The reversal of 21130113322 is 22331103112.

It can be written as a sum of positive squares in 2 ways, for example, as 20503662481 + 626450841 = 143191^2 + 25029^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21130113322.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 821997 + ... + 847312.

Almost surely, 2^21130113322 is an apocalyptic number.

21130113322 is a deficient number, since it is larger than the sum of its proper divisors (10570083578).

21130113322 is a wasteful number, since it uses less digits than its factorization.

21130113322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675640.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21130113322 its reverse (22331103112), we get a palindrome (43461216434).

The spelling of 21130113322 in words is "twenty-one billion, one hundred thirty million, one hundred thirteen thousand, three hundred twenty-two".