22125130432 has 56 divisors (see below), whose sum is σ = 45250729920. Its totient is φ = 10727700480.

The previous prime is 22125130387. The next prime is 22125130483. The reversal of 22125130432 is 23403152122.

It is a junction number, because it is equal to n+sod(n) for n = 22125130397 and 22125130406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294132 + ... + 361612.

Almost surely, 2^22125130432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22125130432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22625364960).

22125130432 is an abundant number, since it is smaller than the sum of its proper divisors (23125599488).

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

22125130432 is a wasteful number, since it uses less digits than its factorization.

22125130432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67649 (or 67639 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 22125130432 its reverse (23403152122), we get a palindrome (45528282554).

The spelling of 22125130432 in words is "twenty-two billion, one hundred twenty-five million, one hundred thirty thousand, four hundred thirty-two".