1121111111120 has 160 divisors (see below), whose sum is σ = 3499748501760. Its totient is φ = 322557419520.

The previous prime is 1121111111023. The next prime is 1121111111167. The reversal of 1121111111120 is 211111111211.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1121111111095 and 1121111111104.

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, 6919865 + ... + 7080024.

It is an arithmetic number, because the mean of its divisors is an integer number (21873428136).

Almost surely, 2^{1121111111120} is an apocalyptic number.

1121111111120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121111111120 is an abundant number, since it is smaller than the sum of its proper divisors (2378637390640).

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

1121111111120 is a wasteful number, since it uses less digits than its factorization.

1121111111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13999933 (or 13999927 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 1121111111120 its reverse (211111111211), we get a palindrome (1332222222331).

Subtracting from 1121111111120 its reverse (211111111211), we obtain a palindrome (909999999909).

It can be divided in two parts, 1 and 121111111120, that added together give a palindrome (121111111121).

The spelling of 1121111111120 in words is "one trillion, one hundred twenty-one billion, one hundred eleven million, one hundred eleven thousand, one hundred twenty".