211212100200 has 48 divisors (see below), whose sum is σ = 654757512480. Its totient is φ = 56323226560.

The previous prime is 211212100189. The next prime is 211212100207. The reversal of 211212100200 is 2001212112.

It is a super-2 number, since 2×211212100200² (a number of 23 digits) contains 22 as substring.

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 (211212100207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176009484 + ... + 176010683.

It is an arithmetic number, because the mean of its divisors is an integer number (13640781510).

Almost surely, 2^211212100200 is an apocalyptic number.

211212100200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211212100200 is an abundant number, since it is smaller than the sum of its proper divisors (443545412280).

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

211212100200 is a wasteful number, since it uses less digits than its factorization.

211212100200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352020186 (or 352020177 counting only the distinct ones).

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

Adding to 211212100200 its reverse (2001212112), we get a palindrome (213213312312).

The spelling of 211212100200 in words is "two hundred eleven billion, two hundred twelve million, one hundred thousand, two hundred".