111120201 has 8 divisors (see below), whose sum is σ = 164622560. Its totient is φ = 74080116.

The previous prime is 111120181. The next prime is 111120203. The reversal of 111120201 is 102021111.

It is a happy number.

It is not a de Polignac number, because 111120201 - 2⁵ = 111120169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111120203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2057755 + ... + 2057808.

It is an arithmetic number, because the mean of its divisors is an integer number (20577820).

Almost surely, 2^111120201 is an apocalyptic number.

It is an amenable number.

111120201 is a deficient number, since it is larger than the sum of its proper divisors (53502359).

111120201 is an equidigital number, since it uses as much as digits as its factorization.

111120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4115572 (or 4115566 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 111120201 is about 10541.3566963650. The cubic root of 111120201 is about 480.7629663000.

Adding to 111120201 its reverse (102021111), we get a palindrome (213141312).

It can be divided in two parts, 1111 and 20201, that added together give a palindrome (21312).

The spelling of 111120201 in words is "one hundred eleven million, one hundred twenty thousand, two hundred one".