20002323222 has 180 divisors, whose sum is σ = 53475889500. Its totient is φ = 5571840960.

The previous prime is 20002323151. The next prime is 20002323227. The reversal of 20002323222 is 22232320002.

It is a super-2 number, since 2×20002323222² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20002323195 and 20002323204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002323227) 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 89 ways as a sum of consecutive naturals, for example, 13343029 + ... + 13344527.

It is an arithmetic number, because the mean of its divisors is an integer number (297088275).

Almost surely, 2^20002323222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20002323222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26737944750).

20002323222 is an abundant number, since it is smaller than the sum of its proper divisors (33473566278).

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

20002323222 is a wasteful number, since it uses less digits than its factorization.

20002323222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609 (or 1552 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 20002323222 its reverse (22232320002), we get a palindrome (42234643224).

The spelling of 20002323222 in words is "twenty billion, two million, three hundred twenty-three thousand, two hundred twenty-two".