211100212020200 has 96 divisors (see below), whose sum is σ = 519686333314200. Its totient is φ = 79471907389440.

The previous prime is 211100212020101. The next prime is 211100212020209. The reversal of 211100212020200 is 2020212001112.

It can be written as a sum of positive squares in 12 ways, for example, as 62180510953444 + 148919701066756 = 7885462^2 + 12203266^2 .

It is not an unprimeable number, because it can be changed into a prime (211100212020209) 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, 266290016 + ... + 267081584.

Almost surely, 2^{211100212020200} is an apocalyptic number.

211100212020200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211100212020200 is an abundant number, since it is smaller than the sum of its proper divisors (308586121294000).

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

211100212020200 is a wasteful number, since it uses less digits than its factorization.

211100212020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870039 (or 870030 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 211100212020200 its reverse (2020212001112), we get a palindrome (213120424021312).

The spelling of 211100212020200 in words is "two hundred eleven trillion, one hundred billion, two hundred twelve million, twenty thousand, two hundred".