22205052431440 has 40 divisors (see below), whose sum is σ = 51627621477888. Its totient is φ = 8881870508160.

The previous prime is 22205052431423. The next prime is 22205052431449. The reversal of 22205052431440 is 4413425050222.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 22205052431396 and 22205052431405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22205052431449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2462169 + ... + 7104391.

Almost surely, 2^{22205052431440} is an apocalyptic number.

22205052431440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22205052431440 is an abundant number, since it is smaller than the sum of its proper divisors (29422569046448).

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

22205052431440 is a wasteful number, since it uses less digits than its factorization.

22205052431440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4702027 (or 4702021 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 22205052431440 its reverse (4413425050222), we get a palindrome (26618477481662).

The spelling of 22205052431440 in words is "twenty-two trillion, two hundred five billion, fifty-two million, four hundred thirty-one thousand, four hundred forty".