111242201 has 6 divisors (see below), whose sum is σ = 129404250. Its totient is φ = 95350416.

The previous prime is 111242141. The next prime is 111242213. The reversal of 111242201 is 102242111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 96040000 + 15202201 = 9800^2 + 3899^2 .

It is not a de Polignac number, because 111242201 - 2⁶ = 111242137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111242281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1135076 + ... + 1135173.

It is an arithmetic number, because the mean of its divisors is an integer number (21567375).

Almost surely, 2^111242201 is an apocalyptic number.

It is an amenable number.

111242201 is a deficient number, since it is larger than the sum of its proper divisors (18162049).

111242201 is an equidigital number, since it uses as much as digits as its factorization.

111242201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270263 (or 2270256 counting only the distinct ones).

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

The square root of 111242201 is about 10547.1418403281. The cubic root of 111242201 is about 480.9388468005.

Adding to 111242201 its reverse (102242111), we get a palindrome (213484312).

The spelling of 111242201 in words is "one hundred eleven million, two hundred forty-two thousand, two hundred one".