20020112120000 has 140 divisors (see below), whose sum is σ = 50201171139240. Its totient is φ = 7918065408000.

The previous prime is 20020112119979. The next prime is 20020112120003. The reversal of 20020112120000 is 2121102002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20020112120003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 748187 + ... + 6371813.

Almost surely, 2^{20020112120000} is an apocalyptic number.

20020112120000 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 20020112120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25100585569620).

20020112120000 is an abundant number, since it is smaller than the sum of its proper divisors (30181059019240).

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

20020112120000 is an frugal number, since it uses more digits than its factorization.

20020112120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5623748 (or 5623723 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20020112120000 its reverse (2121102002), we get a palindrome (20022233222002).

The spelling of 20020112120000 in words is "twenty trillion, twenty billion, one hundred twelve million, one hundred twenty thousand".