22303022220 has 192 divisors, whose sum is σ = 71366883840. Its totient is φ = 5779927296.

The previous prime is 22303022179. The next prime is 22303022221. The reversal of 22303022220 is 2222030322.

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 = 22303022193 and 22303022202.

It is not an unprimeable number, because it can be changed into a prime (22303022221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3058699 + ... + 3065981.

It is an arithmetic number, because the mean of its divisors is an integer number (371702520).

Almost surely, 2^22303022220 is an apocalyptic number.

22303022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22303022220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35683441920).

22303022220 is an abundant number, since it is smaller than the sum of its proper divisors (49063861620).

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

22303022220 is a wasteful number, since it uses less digits than its factorization.

22303022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7461 (or 7453 counting only the distinct ones).

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

Adding to 22303022220 its reverse (2222030322), we get a palindrome (24525052542).

The spelling of 22303022220 in words is "twenty-two billion, three hundred three million, twenty-two thousand, two hundred twenty".