111102102221 has 8 divisors (see below), whose sum is σ = 121208065824. Its totient is φ = 100997100720.

The previous prime is 111102102193. The next prime is 111102102227. The reversal of 111102102221 is 122201201111.

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 111102102221 - 2¹⁴ = 111102085837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111102102196 and 111102102205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111102102227) 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, 12515 + ... + 471551.

It is an arithmetic number, because the mean of its divisors is an integer number (15151008228).

Almost surely, 2^111102102221 is an apocalyptic number.

111102102221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111102102221 is a deficient number, since it is larger than the sum of its proper divisors (10105963603).

111102102221 is a wasteful number, since it uses less digits than its factorization.

111102102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481051.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111102102221 its reverse (122201201111), we get a palindrome (233303303332).

The spelling of 111102102221 in words is "one hundred eleven billion, one hundred two million, one hundred two thousand, two hundred twenty-one".