12120020112000 has 512 divisors, whose sum is σ = 41952268051200. Its totient is φ = 3091354828800.

The previous prime is 12120020111999. The next prime is 12120020112001. The reversal of 12120020112000 is 21102002121.

It is an interprime number because it is at equal distance from previous prime (12120020111999) and next prime (12120020112001).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (12120020112001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 148903314 + ... + 148984686.

Almost surely, 2^{12120020112000} is an apocalyptic number.

12120020112000 is a gapful number since it is divisible by the number (10) 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 12120020112000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20976134025600).

12120020112000 is an abundant number, since it is smaller than the sum of its proper divisors (29832247939200).

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

12120020112000 is a wasteful number, since it uses less digits than its factorization.

12120020112000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81541 (or 81519 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12120020112000 its reverse (21102002121), we get a palindrome (12141122114121).

The spelling of 12120020112000 in words is "twelve trillion, one hundred twenty billion, twenty million, one hundred twelve thousand".