22143411221232 has 160 divisors (see below), whose sum is σ = 65506880577024. Its totient is φ = 6314007168000.

The previous prime is 22143411221231. The next prime is 22143411221263. The reversal of 22143411221232 is 23212211434122.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 22143411221232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22143411221231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1207308382 + ... + 1207326722.

Almost surely, 2^{22143411221232} 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 22143411221232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32753440288512).

22143411221232 is an abundant number, since it is smaller than the sum of its proper divisors (43363469355792).

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

22143411221232 is a wasteful number, since it uses less digits than its factorization.

22143411221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25367 (or 25361 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

Adding to 22143411221232 its reverse (23212211434122), we get a palindrome (45355622655354).

The spelling of 22143411221232 in words is "twenty-two trillion, one hundred forty-three billion, four hundred eleven million, two hundred twenty-one thousand, two hundred thirty-two".