12231122020 has 48 divisors (see below), whose sum is σ = 28074045888. Its totient is φ = 4448695680.

The previous prime is 12231121963. The next prime is 12231122021. The reversal of 12231122020 is 2022113221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12231121985 and 12231122003.

It is not an unprimeable number, because it can be changed into a prime (12231122021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333646 + ... + 368485.

It is an arithmetic number, because the mean of its divisors is an integer number (584875956).

Almost surely, 2^12231122020 is an apocalyptic number.

12231122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12231122020 is an abundant number, since it is smaller than the sum of its proper divisors (15842923868).

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

12231122020 is a wasteful number, since it uses less digits than its factorization.

12231122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702220 (or 702218 counting only the distinct ones).

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

Adding to 12231122020 its reverse (2022113221), we get a palindrome (14253235241).

The spelling of 12231122020 in words is "twelve billion, two hundred thirty-one million, one hundred twenty-two thousand, twenty".