211100100210 has 64 divisors (see below), whose sum is σ = 592561699200. Its totient is φ = 53330550336.

The previous prime is 211100100209. The next prime is 211100100217. The reversal of 211100100210 is 12001001112.

It is a happy number.

211100100210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 211100100192 and 211100100201.

It is not an unprimeable number, because it can be changed into a prime (211100100217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20569929 + ... + 20580188.

It is an arithmetic number, because the mean of its divisors is an integer number (9258776550).

Almost surely, 2^211100100210 is an apocalyptic number.

211100100210 is an abundant number, since it is smaller than the sum of its proper divisors (381461598990).

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

211100100210 is a wasteful number, since it uses less digits than its factorization.

211100100210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41150152 (or 41150146 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 211100100210 its reverse (12001001112), we get a palindrome (223101101322).

The spelling of 211100100210 in words is "two hundred eleven billion, one hundred million, one hundred thousand, two hundred ten".