22242443140 has 24 divisors (see below), whose sum is σ = 47122490520. Its totient is φ = 8818242048.

The previous prime is 22242443123. The next prime is 22242443141. The reversal of 22242443140 is 4134424222.

It can be written as a sum of positive squares in 4 ways, for example, as 52765696 + 22189677444 = 7264^2 + 148962^2 .

It is a super-2 number, since 2×22242443140² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22242443099 and 22242443108.

It is not an unprimeable number, because it can be changed into a prime (22242443141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4918635 + ... + 4923154.

It is an arithmetic number, because the mean of its divisors is an integer number (1963437105).

Almost surely, 2^22242443140 is an apocalyptic number.

22242443140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22242443140 is an abundant number, since it is smaller than the sum of its proper divisors (24880047380).

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

22242443140 is a wasteful number, since it uses less digits than its factorization.

22242443140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9841911 (or 9841909 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 22242443140 its reverse (4134424222), we get a palindrome (26376867362).

The spelling of 22242443140 in words is "twenty-two billion, two hundred forty-two million, four hundred forty-three thousand, one hundred forty".