111225201 has 4 divisors (see below), whose sum is σ = 148300272. Its totient is φ = 74150132.

The previous prime is 111225199. The next prime is 111225223. The reversal of 111225201 is 102522111.

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 an emirpimes, since its reverse is a distinct semiprime: 102522111 = 3 ⋅34174037.

It is a cyclic number.

It is not a de Polignac number, because 111225201 - 2¹ = 111225199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111225001) 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, 18537531 + ... + 18537536.

It is an arithmetic number, because the mean of its divisors is an integer number (37075068).

Almost surely, 2^111225201 is an apocalyptic number.

It is an amenable number.

111225201 is a deficient number, since it is larger than the sum of its proper divisors (37075071).

111225201 is an equidigital number, since it uses as much as digits as its factorization.

111225201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37075070.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 111225201 is about 10546.3359040000. The cubic root of 111225201 is about 480.9143465753.

Adding to 111225201 its reverse (102522111), we get a palindrome (213747312).

The spelling of 111225201 in words is "one hundred eleven million, two hundred twenty-five thousand, two hundred one".