20120112102020 has 96 divisors (see below), whose sum is σ = 48761765434368. Its totient is φ = 6830740559232.

The previous prime is 20120112102019. The next prime is 20120112102037. The reversal of 20120112102020 is 2020121102102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 20120112101986 and 20120112102004.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 32696099 + ... + 33305781.

It is an arithmetic number, because the mean of its divisors is an integer number (507935056608).

Almost surely, 2^{20120112102020} is an apocalyptic number.

20120112102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20120112102020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24380882717184).

20120112102020 is an abundant number, since it is smaller than the sum of its proper divisors (28641653332348).

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

20120112102020 is a wasteful number, since it uses less digits than its factorization.

20120112102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612009 (or 612007 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20120112102020 its reverse (2020121102102), we get a palindrome (22140233204122).

The spelling of 20120112102020 in words is "twenty trillion, one hundred twenty billion, one hundred twelve million, one hundred two thousand, twenty".