201112210 has 96 divisors (see below), whose sum is σ = 426120912. Its totient is φ = 67891200.

The previous prime is 201112189. The next prime is 201112211. The reversal of 201112210 is 12211102.

It can be written as a sum of positive squares in 24 ways, for example, as 35964009 + 165148201 = 5997^2 + 12851^2 .

It is a super-2 number, since 2×201112210² = 80892242022168200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (201112211) 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 47 ways as a sum of consecutive naturals, for example, 1991160 + ... + 1991260.

Almost surely, 2^201112210 is an apocalyptic number.

201112210 is an abundant number, since it is smaller than the sum of its proper divisors (225008702).

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

201112210 is a wasteful number, since it uses less digits than its factorization.

201112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 201112210 is about 14181.4036681846. The cubic root of 201112210 is about 585.8855849494.

Adding to 201112210 its reverse (12211102), we get a palindrome (213323312).

The spelling of 201112210 in words is "two hundred one million, one hundred twelve thousand, two hundred ten".