21222303330 has 32 divisors (see below), whose sum is σ = 52576547328. Its totient is φ = 5476723200.

The previous prime is 21222303317. The next prime is 21222303337. The reversal of 21222303330 is 3330322212.

It is a junction number, because it is equal to n+sod(n) for n = 21222303297 and 21222303306.

It is not an unprimeable number, because it can be changed into a prime (21222303337) 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 15 ways as a sum of consecutive naturals, for example, 11408911 + ... + 11410770.

It is an arithmetic number, because the mean of its divisors is an integer number (1643017104).

Almost surely, 2^21222303330 is an apocalyptic number.

21222303330 is an abundant number, since it is smaller than the sum of its proper divisors (31354243998).

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

21222303330 is a wasteful number, since it uses less digits than its factorization.

21222303330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22819722.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 21222303330 its reverse (3330322212), we get a palindrome (24552625542).

The spelling of 21222303330 in words is "twenty-one billion, two hundred twenty-two million, three hundred three thousand, three hundred thirty".