22244242134440 has 64 divisors (see below), whose sum is σ = 50386126150800. Its totient is φ = 8837900218368.

The previous prime is 22244242134391. The next prime is 22244242134469. The reversal of 22244242134440 is 4443124244222.

It can be written as a sum of positive squares in 8 ways, for example, as 495804689956 + 21748437444484 = 704134^2 + 4663522^2 .

It is a super-2 number, since 2×22244242134440² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22244242134394 and 22244242134403.

It is an unprimeable number.

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, 17192096 + ... + 18440624.

Almost surely, 2^{22244242134440} is an apocalyptic number.

22244242134440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22244242134440 is an abundant number, since it is smaller than the sum of its proper divisors (28141884016360).

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

22244242134440 is a wasteful number, since it uses less digits than its factorization.

22244242134440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251534 (or 1251530 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 38.

Adding to 22244242134440 its reverse (4443124244222), we get a palindrome (26687366378662).

The spelling of 22244242134440 in words is "twenty-two trillion, two hundred forty-four billion, two hundred forty-two million, one hundred thirty-four thousand, four hundred forty".