20112120112000 has 128 divisors (see below), whose sum is σ = 57147153036480. Its totient is φ = 6895584000000.

The previous prime is 20112120111913. The next prime is 20112120112001. The reversal of 20112120112000 is 21102121102.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112120112001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89674251 + ... + 89898250.

Almost surely, 2^{20112120112000} is an apocalyptic number.

20112120112000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112120112000 is an abundant number, since it is smaller than the sum of its proper divisors (37035032924480).

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

20112120112000 is an equidigital number, since it uses as much as digits as its factorization.

20112120112000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179572537 (or 179572515 counting only the distinct ones).

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

Adding to 20112120112000 its reverse (21102121102), we get a palindrome (20133222233102).

The spelling of 20112120112000 in words is "twenty trillion, one hundred twelve billion, one hundred twenty million, one hundred twelve thousand".