20112001120000 has 180 divisors, whose sum is σ = 51895606621320. Its totient is φ = 7767391744000.

The previous prime is 20112001119989. The next prime is 20112001120033. The reversal of 20112001120000 is 2110021102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

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, 2472759 + ... + 6807241.

It is an arithmetic number, because the mean of its divisors is an integer number (288308925674).

Almost surely, 2^{20112001120000} is an apocalyptic number.

20112001120000 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 20112001120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25947803310660).

20112001120000 is an abundant number, since it is smaller than the sum of its proper divisors (31783605501320).

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

20112001120000 is an frugal number, since it uses more digits than its factorization.

20112001120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4334548 (or 4334519 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20112001120000 its reverse (2110021102), we get a palindrome (20114111141102).

The spelling of 20112001120000 in words is "twenty trillion, one hundred twelve billion, one million, one hundred twenty thousand".