201112240 has 40 divisors (see below), whose sum is σ = 534385440. Its totient is φ = 68952576.

The previous prime is 201112231. The next prime is 201112243. The reversal of 201112240 is 42211102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×201112240² = 80892266155635200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201112240.

It is not an unprimeable number, because it can be changed into a prime (201112243) 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 7 ways as a sum of consecutive naturals, for example, 179005 + ... + 180124.

It is an arithmetic number, because the mean of its divisors is an integer number (13359636).

Almost surely, 2^201112240 is an apocalyptic number.

201112240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201112240 is an abundant number, since it is smaller than the sum of its proper divisors (333273200).

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

201112240 is a wasteful number, since it uses less digits than its factorization.

201112240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359149 (or 359143 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 201112240 is about 14181.4047259078. The cubic root of 201112240 is about 585.8856140817.

Adding to 201112240 its reverse (42211102), we get a palindrome (243323342).

The spelling of 201112240 in words is "two hundred one million, one hundred twelve thousand, two hundred forty".