201112197 has 24 divisors (see below), whose sum is σ = 316768608. Its totient is φ = 112507200.

The previous prime is 201112189. The next prime is 201112211. The reversal of 201112197 is 791211102.

It is not a de Polignac number, because 201112197 - 2³ = 201112189 is a prime.

It is a super-2 number, since 2×201112197² = 80892231564333618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201117197) 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 23 ways as a sum of consecutive naturals, for example, 12454 + ... + 23607.

It is an arithmetic number, because the mean of its divisors is an integer number (13198692).

Almost surely, 2^201112197 is an apocalyptic number.

It is an amenable number.

201112197 is a deficient number, since it is larger than the sum of its proper divisors (115656411).

201112197 is a wasteful number, since it uses less digits than its factorization.

201112197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36101 (or 36088 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 24.

The square root of 201112197 is about 14181.4032098379. The cubic root of 201112197 is about 585.8855723254.

Adding to 201112197 its reverse (791211102), we get a palindrome (992323299).

The spelling of 201112197 in words is "two hundred one million, one hundred twelve thousand, one hundred ninety-seven".