210200112121100 has 144 divisors (see below), whose sum is σ = 477428820099840. Its totient is φ = 80231200358400.

The previous prime is 210200112121063. The next prime is 210200112121177. The reversal of 210200112121100 is 1121211002012.

It is a super-2 number, since 2×210200112121100² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 839221484 + ... + 839471916.

It is an arithmetic number, because the mean of its divisors is an integer number (3315477917360).

Almost surely, 2^{210200112121100} is an apocalyptic number.

210200112121100 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 210200112121100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238714410049920).

210200112121100 is an abundant number, since it is smaller than the sum of its proper divisors (267228707978740).

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

210200112121100 is a wasteful number, since it uses less digits than its factorization.

210200112121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254260 (or 254253 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210200112121100 its reverse (1121211002012), we get a palindrome (211321323123112).

The spelling of 210200112121100 in words is "two hundred ten trillion, two hundred billion, one hundred twelve million, one hundred twenty-one thousand, one hundred".