12122322432 has 160 divisors (see below), whose sum is σ = 36184541184. Its totient is φ = 3573964800.

The previous prime is 12122322389. The next prime is 12122322439. The reversal of 12122322432 is 23422322121.

It is a super-2 number, since 2×12122322432² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122322439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615457 + ... + 634847.

Almost surely, 2^12122322432 is an apocalyptic number.

12122322432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12122322432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18092270592).

12122322432 is an abundant number, since it is smaller than the sum of its proper divisors (24062218752).

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

12122322432 is a wasteful number, since it uses less digits than its factorization.

12122322432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19460 (or 19444 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

Adding to 12122322432 its reverse (23422322121), we get a palindrome (35544644553).

The spelling of 12122322432 in words is "twelve billion, one hundred twenty-two million, three hundred twenty-two thousand, four hundred thirty-two".