22224400440040 has 32 divisors (see below), whose sum is σ = 50008203225000. Its totient is φ = 8889173112064.

The previous prime is 22224400440019. The next prime is 22224400440083. The reversal of 22224400440040 is 4004400442222.

It can be written as a sum of positive squares in 4 ways, for example, as 15567143852484 + 6657256587556 = 3945522^2 + 2580166^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22224400439990 and 22224400440008.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17732215 + ... + 18944134.

Almost surely, 2^{22224400440040} is an apocalyptic number.

22224400440040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22224400440040 is an abundant number, since it is smaller than the sum of its proper divisors (27783802784960).

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

22224400440040 is a wasteful number, since it uses less digits than its factorization.

22224400440040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36691509 (or 36691505 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 22224400440040 its reverse (4004400442222), we get a palindrome (26228800882262).

The spelling of 22224400440040 in words is "twenty-two trillion, two hundred twenty-four billion, four hundred million, four hundred forty thousand, forty".