111220201 has 8 divisors (see below), whose sum is σ = 113177024. Its totient is φ = 109272240.

The previous prime is 111220199. The next prime is 111220217. The reversal of 111220201 is 102022111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111220201 - 2¹ = 111220199 is a prime.

It is a super-2 number, since 2×111220201² = 24739866220960802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111220271) 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 7 ways as a sum of consecutive naturals, for example, 26236 + ... + 30178.

It is an arithmetic number, because the mean of its divisors is an integer number (14147128).

Almost surely, 2^111220201 is an apocalyptic number.

It is an amenable number.

111220201 is a deficient number, since it is larger than the sum of its proper divisors (1956823).

111220201 is an equidigital number, since it uses as much as digits as its factorization.

111220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4431.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 111220201 is about 10546.0988521823. The cubic root of 111220201 is about 480.9071401517.

Adding to 111220201 its reverse (102022111), we get a palindrome (213242312).

The spelling of 111220201 in words is "one hundred eleven million, two hundred twenty thousand, two hundred one".