12322121532 has 36 divisors (see below), whose sum is σ = 33445760040. Its totient is φ = 3520605984.

The previous prime is 12322121531. The next prime is 12322121549. The reversal of 12322121532 is 23512122321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12322121531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10477407 + ... + 10478582.

It is an arithmetic number, because the mean of its divisors is an integer number (929048890).

Almost surely, 2^12322121532 is an apocalyptic number.

12322121532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12322121532 is an abundant number, since it is smaller than the sum of its proper divisors (21123638508).

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

12322121532 is a wasteful number, since it uses less digits than its factorization.

12322121532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20956010 (or 20956001 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

Adding to 12322121532 its reverse (23512122321), we get a palindrome (35834243853).

The spelling of 12322121532 in words is "twelve billion, three hundred twenty-two million, one hundred twenty-one thousand, five hundred thirty-two".