22224444100 has 18 divisors (see below), whose sum is σ = 48227043914. Its totient is φ = 8889777600.

The previous prime is 22224444023. The next prime is 22224444103. The reversal of 22224444100 is 144442222.

It can be written as a sum of positive squares in 3 ways, for example, as 1066414336 + 21158029764 = 32656^2 + 145458^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (22224444103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111122121 + ... + 111122320.

Almost surely, 2^22224444100 is an apocalyptic number.

22224444100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22224444100 is an abundant number, since it is smaller than the sum of its proper divisors (26002599814).

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

22224444100 is a wasteful number, since it uses less digits than its factorization.

22224444100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222244455 (or 222244448 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 22224444100 its reverse (144442222), we get a palindrome (22368886322).

The spelling of 22224444100 in words is "twenty-two billion, two hundred twenty-four million, four hundred forty-four thousand, one hundred".