111224201 has 4 divisors (see below), whose sum is σ = 121335504. Its totient is φ = 101112900.

The previous prime is 111224189. The next prime is 111224213. The reversal of 111224201 is 102422111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (111224189) and next prime (111224213).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111224201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111224261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5055635 + ... + 5055656.

It is an arithmetic number, because the mean of its divisors is an integer number (30333876).

Almost surely, 2^111224201 is an apocalyptic number.

111224201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111224201 is a deficient number, since it is larger than the sum of its proper divisors (10111303).

111224201 is a wasteful number, since it uses less digits than its factorization.

111224201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10111302.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 111224201 is about 10546.2884940627. The cubic root of 111224201 is about 480.9129053079.

Adding to 111224201 its reverse (102422111), we get a palindrome (213646312).

The spelling of 111224201 in words is "one hundred eleven million, two hundred twenty-four thousand, two hundred one".