21222313330 has 8 divisors (see below), whose sum is σ = 38200164012. Its totient is φ = 8488925328.

The previous prime is 21222313319. The next prime is 21222313337. The reversal of 21222313330 is 3331322212.

It can be written as a sum of positive squares in 2 ways, for example, as 20289438481 + 932874849 = 142441^2 + 30543^2 .

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

It is not an unprimeable number, because it can be changed into a prime (21222313337) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1061115657 + ... + 1061115676.

Almost surely, 2^21222313330 is an apocalyptic number.

21222313330 is a deficient number, since it is larger than the sum of its proper divisors (16977850682).

21222313330 is a wasteful number, since it uses less digits than its factorization.

21222313330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122231340.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21222313330 its reverse (3331322212), we get a palindrome (24553635542).

The spelling of 21222313330 in words is "twenty-one billion, two hundred twenty-two million, three hundred thirteen thousand, three hundred thirty".