20112002011200 has 336 divisors, whose sum is σ = 72154559312640. Its totient is φ = 4863995136000.

The previous prime is 20112002011187. The next prime is 20112002011201. The reversal of 20112002011200 is 211020021102.

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 (20112002011201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21668655 + ... + 22577745.

It is an arithmetic number, because the mean of its divisors is an integer number (214745712240).

Almost surely, 2^{20112002011200} is an apocalyptic number.

20112002011200 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 20112002011200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36077279656320).

20112002011200 is an abundant number, since it is smaller than the sum of its proper divisors (52042557301440).

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

20112002011200 is a wasteful number, since it uses less digits than its factorization.

20112002011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909546 (or 909531 counting only the distinct ones).

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

Adding to 20112002011200 its reverse (211020021102), we get a palindrome (20323022032302).

The spelling of 20112002011200 in words is "twenty trillion, one hundred twelve billion, two million, eleven thousand, two hundred".