22123404200 has 96 divisors (see below), whose sum is σ = 53163025920. Its totient is φ = 8553120000.

The previous prime is 22123404181. The next prime is 22123404211. The reversal of 22123404200 is 240432122.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6390470 + ... + 6393930.

It is an arithmetic number, because the mean of its divisors is an integer number (553781520).

Almost surely, 2^22123404200 is an apocalyptic number.

22123404200 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 22123404200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26581512960).

22123404200 is an abundant number, since it is smaller than the sum of its proper divisors (31039621720).

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

22123404200 is a wasteful number, since it uses less digits than its factorization.

22123404200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539 (or 4530 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22123404200 its reverse (240432122), we get a palindrome (22363836322).

The spelling of 22123404200 in words is "twenty-two billion, one hundred twenty-three million, four hundred four thousand, two hundred".