111220204 has 6 divisors (see below), whose sum is σ = 194635364. Its totient is φ = 55610100.

The previous prime is 111220199. The next prime is 111220217. The reversal of 111220204 is 402022111.

It is a happy number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13902522 + ... + 13902529.

Almost surely, 2^111220204 is an apocalyptic number.

It is an amenable number.

111220204 is a deficient number, since it is larger than the sum of its proper divisors (83415160).

111220204 is a wasteful number, since it uses less digits than its factorization.

111220204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27805055 (or 27805053 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 111220204 is about 10546.0989944149. The cubic root of 111220204 is about 480.9071444756.

Adding to 111220204 its reverse (402022111), we get a palindrome (513242315).

It can be divided in two parts, 1112 and 20204, that added together give a square (21316 = 146²).

The spelling of 111220204 in words is "one hundred eleven million, two hundred twenty thousand, two hundred four".