12112002020 has 24 divisors (see below), whose sum is σ = 25915116024. Its totient is φ = 4753389056.

The previous prime is 12112002011. The next prime is 12112002041. The reversal of 12112002020 is 2020021121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1274775616 + 10837226404 = 35704^2 + 104102^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12112001992 and 12112002010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5712149 + ... + 5714268.

It is an arithmetic number, because the mean of its divisors is an integer number (1079796501).

Almost surely, 2^12112002020 is an apocalyptic number.

12112002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112002020 is an abundant number, since it is smaller than the sum of its proper divisors (13803114004).

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

12112002020 is a wasteful number, since it uses less digits than its factorization.

12112002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11426479 (or 11426477 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12112002020 its reverse (2020021121), we get a palindrome (14132023141).

The spelling of 12112002020 in words is "twelve billion, one hundred twelve million, two thousand, twenty".