1111210112129 has 16 divisors (see below), whose sum is σ = 1197681626064. Its totient is φ = 1024880947200.

The previous prime is 1111210112093. The next prime is 1111210112137. The reversal of 1111210112129 is 9212110121111.

It can be written as a sum of positive squares in 8 ways, for example, as 83302129 + 1111126810000 = 9127^2 + 1054100^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111210112129 - 2⁸ = 1111210111873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111210112029) 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, 131328959 + ... + 131337419.

It is an arithmetic number, because the mean of its divisors is an integer number (74855101629).

Almost surely, 2^{1111210112129} is an apocalyptic number.

It is an amenable number.

1111210112129 is a deficient number, since it is larger than the sum of its proper divisors (86471513935).

1111210112129 is a wasteful number, since it uses less digits than its factorization.

1111210112129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15668.

The product of its (nonzero) digits is 72, while the sum is 23.

The spelling of 1111210112129 in words is "one trillion, one hundred eleven billion, two hundred ten million, one hundred twelve thousand, one hundred twenty-nine".