12322020400 has 60 divisors (see below), whose sum is σ = 30009254632.
Its totient is φ = 4861278720.
The previous prime is 12322020379. The next prime is 12322020449. The reversal of 12322020400 is 402022321.
12322020400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-3 number, since 3×123220204003 (a number of 31 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (16).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181794 + ... + 240193.
Almost surely, 212322020400 is an apocalyptic number.
12322020400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12322020400 is an abundant number, since it is smaller than the sum of its proper divisors (17687234232).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12322020400 is a wasteful number, since it uses less digits than its factorization.
12322020400 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 422078 (or 422067 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 16.
Adding to 12322020400 its reverse (402022321), we get a palindrome (12724042721).
The spelling of 12322020400 in words is "twelve billion, three hundred twenty-two million, twenty thousand, four hundred".