22202268440 has 64 divisors (see below), whose sum is σ = 55036156320. Its totient is φ = 7993600000.

The previous prime is 22202268421. The next prime is 22202268443. The reversal of 22202268440 is 4486220222.

It is a junction number, because it is equal to n+sod(n) for n = 22202268397 and 22202268406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202268443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205361 + ... + 294240.

Almost surely, 2^22202268440 is an apocalyptic number.

22202268440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22202268440 is an abundant number, since it is smaller than the sum of its proper divisors (32833887880).

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

22202268440 is a wasteful number, since it uses less digits than its factorization.

22202268440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499724 (or 499720 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 22202268440 its reverse (4486220222), we get a palindrome (26688488662).

The spelling of 22202268440 in words is "twenty-two billion, two hundred two million, two hundred sixty-eight thousand, four hundred forty".