22171230432 has 144 divisors (see below), whose sum is σ = 67984665840. Its totient is φ = 6813351936.

The previous prime is 22171230413. The next prime is 22171230451. The reversal of 22171230432 is 23403217122.

22171230432 is a `hidden beast` number, since 2 + 217 + 12 + 3 + 0 + 432 = 666.

It is an interprime number because it is at equal distance from previous prime (22171230413) and next prime (22171230451).

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 22171230396 and 22171230405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3392544 + ... + 3399072.

It is an arithmetic number, because the mean of its divisors is an integer number (472115735).

Almost surely, 2^22171230432 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 22171230432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33992332920).

22171230432 is an abundant number, since it is smaller than the sum of its proper divisors (45813435408).

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

22171230432 is a wasteful number, since it uses less digits than its factorization.

22171230432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7465 (or 7454 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

Adding to 22171230432 its reverse (23403217122), we get a palindrome (45574447554).

The spelling of 22171230432 in words is "twenty-two billion, one hundred seventy-one million, two hundred thirty thousand, four hundred thirty-two".