12011112122020 has 96 divisors (see below), whose sum is σ = 27544108548096. Its totient is φ = 4363276041600.

The previous prime is 12011112122011. The next prime is 12011112122021. The reversal of 12011112122020 is 2022121111021.

It is a junction number, because it is equal to n+sod(n) for n = 12011112121985 and 12011112122003.

It is not an unprimeable number, because it can be changed into a prime (12011112122021) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1087268137 + ... + 1087279183.

It is an arithmetic number, because the mean of its divisors is an integer number (286917797376).

Almost surely, 2^{12011112122020} is an apocalyptic number.

12011112122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011112122020 is an abundant number, since it is smaller than the sum of its proper divisors (15532996426076).

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

12011112122020 is a wasteful number, since it uses less digits than its factorization.

12011112122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15601 (or 15599 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12011112122020 its reverse (2022121111021), we get a palindrome (14033233233041).

The spelling of 12011112122020 in words is "twelve trillion, eleven billion, one hundred twelve million, one hundred twenty-two thousand, twenty".