1121100120112 has 120 divisors (see below), whose sum is σ = 2551782657600. Its totient is φ = 475719350400.

The previous prime is 1121100120083. The next prime is 1121100120121. The reversal of 1121100120112 is 2110210011211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1121100120092 and 1121100120101.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 276744487 + ... + 276748537.

It is an arithmetic number, because the mean of its divisors is an integer number (21264855480).

Almost surely, 2^{1121100120112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121100120112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1275891328800).

1121100120112 is an abundant number, since it is smaller than the sum of its proper divisors (1430682537488).

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

1121100120112 is a wasteful number, since it uses less digits than its factorization.

1121100120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7479 (or 7466 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1121100120112 its reverse (2110210011211), we get a palindrome (3231310131323).

The spelling of 1121100120112 in words is "one trillion, one hundred twenty-one billion, one hundred million, one hundred twenty thousand, one hundred twelve".