111102000000121 has 16 divisors (see below), whose sum is σ = 126891770083344. Its totient is φ = 96366565177344.

The previous prime is 111102000000107. The next prime is 111102000000179. The reversal of 111102000000121 is 121000000201111.

It can be written as a sum of positive squares in 8 ways, for example, as 22554558698896 + 88547441301225 = 4749164^2 + 9409965^2 .

It is a cyclic number.

It is not a de Polignac number, because 111102000000121 - 2⁹ = 111101999999609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111102000000098 and 111102000000107.

It is not an unprimeable number, because it can be changed into a prime (111102000000421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407257470 + ... + 407530183.

It is an arithmetic number, because the mean of its divisors is an integer number (7930735630209).

Almost surely, 2^{111102000000121} is an apocalyptic number.

It is an amenable number.

111102000000121 is a deficient number, since it is larger than the sum of its proper divisors (15789770083223).

111102000000121 is a wasteful number, since it uses less digits than its factorization.

111102000000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814788300.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111102000000121 its reverse (121000000201111), we get a palindrome (232102000201232).

The spelling of 111102000000121 in words is "one hundred eleven trillion, one hundred two billion, one hundred twenty-one", and thus it is an aban number.