22222222222200 has 1536 divisors, whose sum is σ = 95944239175680. Its totient is φ = 4105728000000.

The previous prime is 22222222222181. The next prime is 22222222222201. The reversal of 22222222222200 is 222222222222.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222222222201) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 2244437250 + ... + 2244447150.

It is an arithmetic number, because the mean of its divisors is an integer number (62463697380).

Almost surely, 2^{22222222222200} is an apocalyptic number.

22222222222200 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 22222222222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47972119587840).

22222222222200 is an abundant number, since it is smaller than the sum of its proper divisors (73722016953480).

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

22222222222200 is a wasteful number, since it uses less digits than its factorization.

22222222222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10089 (or 10080 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 22222222222200 its reverse (222222222222), we get a palindrome (22444444444422).

22222222222200 divided by its reverse (222222222222) gives a square (100 = 10²).

It can be divided in two parts, 22222222 and 222200, that added together give a palindrome (22444422).

The spelling of 22222222222200 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred".