111110120002121 has 8 divisors (see below), whose sum is σ = 117744954755400. Its totient is φ = 104662182002560.

The previous prime is 111110120002109. The next prime is 111110120002127. The reversal of 111110120002121 is 121200021011111.

It can be written as a sum of positive squares in 4 ways, for example, as 5776619971600 + 105333500030521 = 2403460^2 + 10263211^2 .

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 111110120002121 - 2¹⁴ = 111110119985737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111110120002096 and 111110120002105.

It is not an unprimeable number, because it can be changed into a prime (111110120002127) 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, 46724187206 + ... + 46724189583.

It is an arithmetic number, because the mean of its divisors is an integer number (14718119344425).

Almost surely, 2^{111110120002121} is an apocalyptic number.

It is an amenable number.

111110120002121 is a deficient number, since it is larger than the sum of its proper divisors (6634834753279).

111110120002121 is an equidigital number, since it uses as much as digits as its factorization.

111110120002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93448376859.

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

Adding to 111110120002121 its reverse (121200021011111), we get a palindrome (232310141013232).

The spelling of 111110120002121 in words is "one hundred eleven trillion, one hundred ten billion, one hundred twenty million, two thousand, one hundred twenty-one".