111245201 has 4 divisors (see below), whose sum is σ = 111266304. Its totient is φ = 111224100.

The previous prime is 111245153. The next prime is 111245203. The reversal of 111245201 is 102542111.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 111245201 - 2¹⁸ = 110983057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111245201.

It is not an unprimeable number, because it can be changed into a prime (111245203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4856 + ... + 15686.

It is an arithmetic number, because the mean of its divisors is an integer number (27816576).

Almost surely, 2^111245201 is an apocalyptic number.

It is an amenable number.

111245201 is a deficient number, since it is larger than the sum of its proper divisors (21103).

111245201 is a wasteful number, since it uses less digits than its factorization.

111245201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21102.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 111245201 is about 10547.2840579933. The cubic root of 111245201 is about 480.9431701105.

Adding to 111245201 its reverse (102542111), we get a palindrome (213787312).

The spelling of 111245201 in words is "one hundred eleven million, two hundred forty-five thousand, two hundred one".