201100210 has 32 divisors (see below), whose sum is σ = 376507440. Its totient is φ = 77242368.

The previous prime is 201100189. The next prime is 201100213. The reversal of 201100210 is 12001102.

It can be written as a sum of positive squares in 8 ways, for example, as 45873529 + 155226681 = 6773^2 + 12459^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201100193 and 201100202.

It is not an unprimeable number, because it can be changed into a prime (201100213) 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 15 ways as a sum of consecutive naturals, for example, 54174 + ... + 57766.

Almost surely, 2^201100210 is an apocalyptic number.

201100210 is a deficient number, since it is larger than the sum of its proper divisors (175407230).

201100210 is a wasteful number, since it uses less digits than its factorization.

201100210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 201100210 is about 14180.9805725838. The cubic root of 201100210 is about 585.8739318083.

Adding to 201100210 its reverse (12001102), we get a palindrome (213101312).

The spelling of 201100210 in words is "two hundred one million, one hundred thousand, two hundred ten".