1121121121112 has 16 divisors (see below), whose sum is σ = 2102114595840. Its totient is φ = 560557228896.

The previous prime is 1121121121111. The next prime is 1121121121123. The reversal of 1121121121112 is 2111211211211.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121121121111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1572398 + ... + 2171330.

It is an arithmetic number, because the mean of its divisors is an integer number (131382162240).

Almost surely, 2^{1121121121112} is an apocalyptic number.

It is an amenable number.

1121121121112 is a deficient number, since it is larger than the sum of its proper divisors (980993474728).

1121121121112 is a wasteful number, since it uses less digits than its factorization.

1121121121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832922 (or 832918 counting only the distinct ones).

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

Adding to 1121121121112 its reverse (2111211211211), we get a palindrome (3232332332323).

Subtracting 1121121121112 from its reverse (2111211211211), we obtain a palindrome (990090090099).

The spelling of 1121121121112 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred twelve".