111100221120121 has 8 divisors (see below), whose sum is σ = 122750116429824. Its totient is φ = 100018613386560.

The previous prime is 111100221120089. The next prime is 111100221120137. The reversal of 111100221120121 is 121021122001111.

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 111100221120121 - 2⁵ = 111100221120089 is a prime.

It is a super-2 number, since 2×111100221120121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111100221120095 and 111100221120104.

It is not an unprimeable number, because it can be changed into a prime (111100221120821) 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, 142071893625 + ... + 142071894406.

It is an arithmetic number, because the mean of its divisors is an integer number (15343764553728).

Almost surely, 2^{111100221120121} is an apocalyptic number.

It is an amenable number.

111100221120121 is a deficient number, since it is larger than the sum of its proper divisors (11649895309703).

111100221120121 is a wasteful number, since it uses less digits than its factorization.

111100221120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284143788071.

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

Adding to 111100221120121 its reverse (121021122001111), we get a palindrome (232121343121232).

The spelling of 111100221120121 in words is "one hundred eleven trillion, one hundred billion, two hundred twenty-one million, one hundred twenty thousand, one hundred twenty-one".