22125042345220 has 12 divisors (see below), whose sum is σ = 46462588925004. Its totient is φ = 8850016938080.

The previous prime is 22125042345209. The next prime is 22125042345221. The reversal of 22125042345220 is 2254324052122.

It can be written as a sum of positive squares in 2 ways, for example, as 8294319360196 + 13830722985024 = 2879986^2 + 3718968^2 .

It is not an unprimeable number, because it can be changed into a prime (22125042345221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553126058611 + ... + 553126058650.

It is an arithmetic number, because the mean of its divisors is an integer number (3871882410417).

Almost surely, 2^{22125042345220} is an apocalyptic number.

22125042345220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22125042345220 is an abundant number, since it is smaller than the sum of its proper divisors (24337546579784).

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

22125042345220 is a wasteful number, since it uses less digits than its factorization.

22125042345220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106252117270 (or 1106252117268 counting only the distinct ones).

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

Adding to 22125042345220 its reverse (2254324052122), we get a palindrome (24379366397342).

The spelling of 22125042345220 in words is "twenty-two trillion, one hundred twenty-five billion, forty-two million, three hundred forty-five thousand, two hundred twenty".