20201112122112 has 180 divisors, whose sum is σ = 60355845894960. Its totient is φ = 6720313485312.

The previous prime is 20201112122111. The next prime is 20201112122143. The reversal of 20201112122112 is 21122121110202.

20201112122112 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20201112122111) 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 19 ways as a sum of consecutive naturals, for example, 9461814 + ... + 11398602.

It is an arithmetic number, because the mean of its divisors is an integer number (335310254972).

Almost surely, 2^{20201112122112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20201112122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30177922947480).

20201112122112 is an abundant number, since it is smaller than the sum of its proper divisors (40154733772848).

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

20201112122112 is an equidigital number, since it uses as much as digits as its factorization.

20201112122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937320 (or 1937297 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 20201112122112 its reverse (21122121110202), we get a palindrome (41323233232314).

The spelling of 20201112122112 in words is "twenty trillion, two hundred one billion, one hundred twelve million, one hundred twenty-two thousand, one hundred twelve".