1121224312112 has 20 divisors (see below), whose sum is σ = 2172514112400. Its totient is φ = 560575508928.

The previous prime is 1121224312097. The next prime is 1121224312121. The reversal of 1121224312112 is 2112134221211.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2037188 + ... + 2528355.

It is an arithmetic number, because the mean of its divisors is an integer number (108625705620).

Almost surely, 2^{1121224312112} is an apocalyptic number.

It is an amenable number.

1121224312112 is a deficient number, since it is larger than the sum of its proper divisors (1051289800288).

1121224312112 is a wasteful number, since it uses less digits than its factorization.

1121224312112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4580900 (or 4580894 counting only the distinct ones).

The product of its digits is 384, while the sum is 23.

Adding to 1121224312112 its reverse (2112134221211), we get a palindrome (3233358533323).

Subtracting 1121224312112 from its reverse (2112134221211), we obtain a palindrome (990909909099).

The spelling of 1121224312112 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-four million, three hundred twelve thousand, one hundred twelve".