12100112012020 has 48 divisors (see below), whose sum is σ = 26030542776336. Its totient is φ = 4721895936000.

The previous prime is 12100112012011. The next prime is 12100112012039. The reversal of 12100112012020 is 2021021100121.

It can be written as a sum of positive squares in 8 ways, for example, as 193112786916 + 11906999225104 = 439446^2 + 3450652^2 .

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, 48190000 + ... + 48440440.

It is an arithmetic number, because the mean of its divisors is an integer number (542302974507).

Almost surely, 2^{12100112012020} is an apocalyptic number.

12100112012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100112012020 is an abundant number, since it is smaller than the sum of its proper divisors (13930430764316).

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

12100112012020 is a wasteful number, since it uses less digits than its factorization.

12100112012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309412 (or 309410 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12100112012020 its reverse (2021021100121), we get a palindrome (14121133112141).

The spelling of 12100112012020 in words is "twelve trillion, one hundred billion, one hundred twelve million, twelve thousand, twenty".