112201111 has 4 divisors (see below), whose sum is σ = 122401224. Its totient is φ = 102001000.

The previous prime is 112201049. The next prime is 112201123. The reversal of 112201111 is 111102211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111102211 = 11 ⋅10100201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112201111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112201151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5100040 + ... + 5100061.

It is an arithmetic number, because the mean of its divisors is an integer number (30600306).

Almost surely, 2^112201111 is an apocalyptic number.

112201111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

112201111 is a deficient number, since it is larger than the sum of its proper divisors (10200113).

112201111 is a wasteful number, since it uses less digits than its factorization.

112201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10200112.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 112201111 is about 10592.5025843754. The cubic root of 112201111 is about 482.3167958658.

Adding to 112201111 its reverse (111102211), we get a palindrome (223303322).

The spelling of 112201111 in words is "one hundred twelve million, two hundred one thousand, one hundred eleven".