111000221111 has 8 divisors (see below), whose sum is σ = 119541501744. Its totient is φ = 102459340800.

The previous prime is 111000221071. The next prime is 111000221131. The reversal of 111000221111 is 111122000111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111000221111 is a prime.

It is a super-4 number, since 4×111000221111⁴ (a number of 45 digits) contains 4444 as substring.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 111000221092 and 111000221101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000221131) 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, 732215 + ... + 870711.

It is an arithmetic number, because the mean of its divisors is an integer number (14942687718).

Almost surely, 2^111000221111 is an apocalyptic number.

111000221111 is a deficient number, since it is larger than the sum of its proper divisors (8541280633).

111000221111 is a wasteful number, since it uses less digits than its factorization.

111000221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200161.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111000221111 its reverse (111122000111), we get a palindrome (222122221222).

The spelling of 111000221111 in words is "one hundred eleven billion, two hundred twenty-one thousand, one hundred eleven".