12322141552 has 90 divisors (see below), whose sum is σ = 29031189752. Its totient is φ = 4962220032.

The previous prime is 12322141537. The next prime is 12322141589. The reversal of 12322141552 is 25514122321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 12322141552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19970748 + ... + 19971364.

Almost surely, 2^12322141552 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 12322141552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14515594876).

12322141552 is an abundant number, since it is smaller than the sum of its proper divisors (16709048200).

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

12322141552 is an frugal number, since it uses more digits than its factorization.

12322141552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283 (or 643 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

Multiplying 12322141552 by its sum of digits (28), we get a square (345019963456 = 587384²).

12322141552 divided by its sum of digits (28) gives a square (440076484 = 20978²).

Adding to 12322141552 its reverse (25514122321), we get a palindrome (37836263873).

The spelling of 12322141552 in words is "twelve billion, three hundred twenty-two million, one hundred forty-one thousand, five hundred fifty-two".