12322231020 has 216 divisors, whose sum is σ = 42089392800. Its totient is φ = 2914137600.

The previous prime is 12322230997. The next prime is 12322231021. The reversal of 12322231020 is 2013222321.

12322231020 is a `hidden beast` number, since 12 + 322 + 2 + 310 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12322230984 and 12322231002.

It is not an unprimeable number, because it can be changed into a prime (12322231021) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 886081 + ... + 899879.

It is an arithmetic number, because the mean of its divisors is an integer number (194858300).

Almost surely, 2^12322231020 is an apocalyptic number.

12322231020 is a gapful number since it is divisible by the number (10) 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 12322231020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21044696400).

12322231020 is an abundant number, since it is smaller than the sum of its proper divisors (29767161780).

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

12322231020 is a wasteful number, since it uses less digits than its factorization.

12322231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13877 (or 13861 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12322231020 its reverse (2013222321), we get a palindrome (14335453341).

It can be divided in two parts, 12322 and 231020, that added together give a palindrome (243342).

The spelling of 12322231020 in words is "twelve billion, three hundred twenty-two million, two hundred thirty-one thousand, twenty".