12322021012 has 48 divisors (see below), whose sum is σ = 25746481152. Its totient is φ = 5045182560.

The previous prime is 12322021007. The next prime is 12322021031. The reversal of 12322021012 is 21012022321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544687 + ... + 566857.

It is an arithmetic number, because the mean of its divisors is an integer number (536385024).

Almost surely, 2^12322021012 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 12322021012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12873240576).

12322021012 is an abundant number, since it is smaller than the sum of its proper divisors (13424460140).

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

12322021012 is a wasteful number, since it uses less digits than its factorization.

12322021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23068 (or 23066 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12322021012 its reverse (21012022321), we get a palindrome (33334043333).

The spelling of 12322021012 in words is "twelve billion, three hundred twenty-two million, twenty-one thousand, twelve".