12112110210020 has 12 divisors (see below), whose sum is σ = 25435431441084. Its totient is φ = 4844844084000.

The previous prime is 12112110210017. The next prime is 12112110210023. The reversal of 12112110210020 is 2001201121121.

It is an interprime number because it is at equal distance from previous prime (12112110210017) and next prime (12112110210023).

It can be written as a sum of positive squares in 2 ways, for example, as 7986694253476 + 4125415956544 = 2826074^2 + 2031112^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12112110209977 and 12112110210004.

It is not an unprimeable number, because it can be changed into a prime (12112110210023) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 302802755231 + ... + 302802755270.

It is an arithmetic number, because the mean of its divisors is an integer number (2119619286757).

Almost surely, 2^{12112110210020} is an apocalyptic number.

12112110210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112110210020 is an abundant number, since it is smaller than the sum of its proper divisors (13323321231064).

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

12112110210020 is a wasteful number, since it uses less digits than its factorization.

12112110210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605605510510 (or 605605510508 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12112110210020 its reverse (2001201121121), we get a palindrome (14113311331141).

The spelling of 12112110210020 in words is "twelve trillion, one hundred twelve billion, one hundred ten million, two hundred ten thousand, twenty".