1121112121110 has 64 divisors (see below), whose sum is σ = 2849102387712. Its totient is φ = 281361491456.

The previous prime is 1121112121081. The next prime is 1121112121133. The reversal of 1121112121110 is 111212111211.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121112121110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11099857 + ... + 11200403.

It is an arithmetic number, because the mean of its divisors is an integer number (44517224808).

Almost surely, 2^{1121112121110} is an apocalyptic number.

1121112121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121112121110 is an abundant number, since it is smaller than the sum of its proper divisors (1727990266602).

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

1121112121110 is a wasteful number, since it uses less digits than its factorization.

1121112121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122437.

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

Adding to 1121112121110 its reverse (111212111211), we get a palindrome (1232324232321).

The spelling of 1121112121110 in words is "one trillion, one hundred twenty-one billion, one hundred twelve million, one hundred twenty-one thousand, one hundred ten".