111434221 has 8 divisors (see below), whose sum is σ = 117432000. Its totient is φ = 105449760.

The previous prime is 111434189. The next prime is 111434231. The reversal of 111434221 is 122434111.

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 111434221 - 2⁵ = 111434189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111434231) 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, 17136 + ... + 22726.

It is an arithmetic number, because the mean of its divisors is an integer number (14679000).

Almost surely, 2^111434221 is an apocalyptic number.

It is an amenable number.

111434221 is a deficient number, since it is larger than the sum of its proper divisors (5997779).

111434221 is a wasteful number, since it uses less digits than its factorization.

111434221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6659.

The product of its digits is 192, while the sum is 19.

The square root of 111434221 is about 10556.2408555319. The cubic root of 111434221 is about 481.2154108833.

Adding to 111434221 its reverse (122434111), we get a palindrome (233868332).

The spelling of 111434221 in words is "one hundred eleven million, four hundred thirty-four thousand, two hundred twenty-one".