20010200111200 has 144 divisors (see below), whose sum is σ = 52643389107456. Its totient is φ = 7383353241600.

The previous prime is 20010200111183. The next prime is 20010200111203. The reversal of 20010200111200 is 211100201002.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010200111203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14644404 + ... + 15952396.

It is an arithmetic number, because the mean of its divisors is an integer number (365579091024).

Almost surely, 2^{20010200111200} is an apocalyptic number.

20010200111200 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 20010200111200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26321694553728).

20010200111200 is an abundant number, since it is smaller than the sum of its proper divisors (32633188996256).

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

20010200111200 is a wasteful number, since it uses less digits than its factorization.

20010200111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309497 (or 1309484 counting only the distinct ones).

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

Adding to 20010200111200 its reverse (211100201002), we get a palindrome (20221300312202).

The spelling of 20010200111200 in words is "twenty trillion, ten billion, two hundred million, one hundred eleven thousand, two hundred".