22222064600 has 96 divisors (see below), whose sum is σ = 53383249920. Its totient is φ = 8597473920.

The previous prime is 22222064597. The next prime is 22222064609. The reversal of 22222064600 is 646022222.

It is a self number, because there is not a number n which added to its sum of digits gives 22222064600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222064609) 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 23 ways as a sum of consecutive naturals, for example, 873257 + ... + 898343.

It is an arithmetic number, because the mean of its divisors is an integer number (556075520).

Almost surely, 2^22222064600 is an apocalyptic number.

22222064600 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 22222064600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26691624960).

22222064600 is an abundant number, since it is smaller than the sum of its proper divisors (31161185320).

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

22222064600 is a wasteful number, since it uses less digits than its factorization.

22222064600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25249 (or 25240 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 22222064600 its reverse (646022222), we get a palindrome (22868086822).

The spelling of 22222064600 in words is "twenty-two billion, two hundred twenty-two million, sixty-four thousand, six hundred".