22144051525452 has 12 divisors (see below), whose sum is σ = 51669453559416. Its totient is φ = 7381350508480.

The previous prime is 22144051525397. The next prime is 22144051525457. The reversal of 22144051525452 is 25452515044122.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (22144051525457) 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, 922668813549 + ... + 922668813572.

It is an arithmetic number, because the mean of its divisors is an integer number (4305787796618).

Almost surely, 2^{22144051525452} is an apocalyptic number.

It is an amenable number.

22144051525452 is an abundant number, since it is smaller than the sum of its proper divisors (29525402033964).

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

22144051525452 is a wasteful number, since it uses less digits than its factorization.

22144051525452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845337627128 (or 1845337627126 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 42.

Adding to 22144051525452 its reverse (25452515044122), we get a palindrome (47596566569574).

The spelling of 22144051525452 in words is "twenty-two trillion, one hundred forty-four billion, fifty-one million, five hundred twenty-five thousand, four hundred fifty-two".