111122221100111 has 8 divisors (see below), whose sum is σ = 126709500983184. Its totient is φ = 96540572177280.

The previous prime is 111122221100089. The next prime is 111122221100117. The reversal of 111122221100111 is 111001122221111.

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 111122221100111 - 2⁴⁶ = 40753476922447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 111122221100111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111122221100117) 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, 251407739825 + ... + 251407740266.

It is an arithmetic number, because the mean of its divisors is an integer number (15838687622898).

Almost surely, 2^{111122221100111} is an apocalyptic number.

111122221100111 is a deficient number, since it is larger than the sum of its proper divisors (15587279883073).

111122221100111 is a wasteful number, since it uses less digits than its factorization.

111122221100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502815480121.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111122221100111 its reverse (111001122221111), we get a palindrome (222123343321222).

The spelling of 111122221100111 in words is "one hundred eleven trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred thousand, one hundred eleven".