20304324222 has 64 divisors (see below), whose sum is σ = 50179336704. Its totient is φ = 5333616000.

The previous prime is 20304324167. The next prime is 20304324223. The reversal of 20304324222 is 22242340302.

It is a happy number.

It is a super-2 number, since 2×20304324222² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20304324192 and 20304324201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20304324223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62968 + ... + 211124.

It is an arithmetic number, because the mean of its divisors is an integer number (784052136).

Almost surely, 2^20304324222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20304324222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25089668352).

20304324222 is an abundant number, since it is smaller than the sum of its proper divisors (29875012482).

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

20304324222 is a wasteful number, since it uses less digits than its factorization.

20304324222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148433.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 20304324222 its reverse (22242340302), we get a palindrome (42546664524).

The spelling of 20304324222 in words is "twenty billion, three hundred four million, three hundred twenty-four thousand, two hundred twenty-two".