20212100111200 has 36 divisors (see below), whose sum is σ = 49342789398420. Its totient is φ = 8084840044160.

The previous prime is 20212100111143. The next prime is 20212100111227. The reversal of 20212100111200 is 211100121202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12632561770 + ... + 12632563369.

It is an arithmetic number, because the mean of its divisors is an integer number (1370633038845).

Almost surely, 2^{20212100111200} is an apocalyptic number.

20212100111200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212100111200 is an abundant number, since it is smaller than the sum of its proper divisors (29130689287220).

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

20212100111200 is a wasteful number, since it uses less digits than its factorization.

20212100111200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25265125159 (or 25265125146 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20212100111200 its reverse (211100121202), we get a palindrome (20423200232402).

The spelling of 20212100111200 in words is "twenty trillion, two hundred twelve billion, one hundred million, one hundred eleven thousand, two hundred".