1121112111210 has 512 divisors, whose sum is σ = 3641147596800. Its totient is φ = 214319001600.

The previous prime is 1121112111179. The next prime is 1121112111253. The reversal of 1121112111210 is 121112111211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1121112111210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 113227260 + ... + 113237160.

It is an arithmetic number, because the mean of its divisors is an integer number (7111616400).

Almost surely, 2^{1121112111210} is an apocalyptic number.

1121112111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121112111210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1820573798400).

1121112111210 is an abundant number, since it is smaller than the sum of its proper divisors (2520035485590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121112111210 is a wasteful number, since it uses less digits than its factorization.

1121112111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10046.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 1121112111210 its reverse (121112111211), we get a palindrome (1242224222421).

Subtracting from 1121112111210 its reverse (121112111211), we obtain a palindrome (999999999999).

The spelling of 1121112111210 in words is "one trillion, one hundred twenty-one billion, one hundred twelve million, one hundred eleven thousand, two hundred ten".