111201442 has 16 divisors (see below), whose sum is σ = 182736000. Its totient is φ = 50332240.

The previous prime is 111201439. The next prime is 111201443. The reversal of 111201442 is 244102111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (111201443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5317 + ... + 15832.

It is an arithmetic number, because the mean of its divisors is an integer number (11421000).

Almost surely, 2^111201442 is an apocalyptic number.

111201442 is a deficient number, since it is larger than the sum of its proper divisors (71534558).

111201442 is a wasteful number, since it uses less digits than its factorization.

111201442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21401.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 111201442 is about 10545.2094336718. The cubic root of 111201442 is about 480.8801011659.

Adding to 111201442 its reverse (244102111), we get a palindrome (355303553).

The spelling of 111201442 in words is "one hundred eleven million, two hundred one thousand, four hundred forty-two".