1112121211211 has 16 divisors (see below), whose sum is σ = 1152871695360. Its totient is φ = 1071684488160.

The previous prime is 1112121211199. The next prime is 1112121211217. The reversal of 1112121211211 is 1121121212111.

It is not a de Polignac number, because 1112121211211 - 2¹⁸ = 1112120949067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1112121211211.

It is not an unprimeable number, because it can be changed into a prime (1112121211217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7360220 + ... + 7509798.

It is an arithmetic number, because the mean of its divisors is an integer number (72054480960).

Almost surely, 2^{1112121211211} is an apocalyptic number.

1112121211211 is a deficient number, since it is larger than the sum of its proper divisors (40750484149).

1112121211211 is a wasteful number, since it uses less digits than its factorization.

1112121211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150626.

The product of its digits is 16, while the sum is 17.

Adding to 1112121211211 its reverse (1121121212111), we get a palindrome (2233242423322).

The spelling of 1112121211211 in words is "one trillion, one hundred twelve billion, one hundred twenty-one million, two hundred eleven thousand, two hundred eleven".