111000111220121 has 8 divisors (see below), whose sum is σ = 111402450586560. Its totient is φ = 110598455524752.

The previous prime is 111000111220081. The next prime is 111000111220127. The reversal of 111000111220121 is 121022111000111.

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 111000111220121 - 2¹⁰ = 111000111219097 is a prime.

It is a super-3 number, since 3×111000111220121³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111000111220096 and 111000111220105.

It is not an unprimeable number, because it can be changed into a prime (111000111220127) 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, 170592461 + ... + 171241898.

It is an arithmetic number, because the mean of its divisors is an integer number (13925306323320).

Almost surely, 2^{111000111220121} is an apocalyptic number.

It is an amenable number.

111000111220121 is a deficient number, since it is larger than the sum of its proper divisors (402339366439).

111000111220121 is an equidigital number, since it uses as much as digits as its factorization.

111000111220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341835535.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111000111220121 its reverse (121022111000111), we get a palindrome (232022222220232).

The spelling of 111000111220121 in words is "one hundred eleven trillion, one hundred eleven million, two hundred twenty thousand, one hundred twenty-one".