1121220112112 has 40 divisors (see below), whose sum is σ = 2286791433600. Its totient is φ = 531082775232.

The previous prime is 1121220112109. The next prime is 1121220112163. The reversal of 1121220112112 is 2112110221211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9446189 + ... + 9564147.

It is an arithmetic number, because the mean of its divisors is an integer number (57169785840).

Almost surely, 2^{1121220112112} is an apocalyptic number.

It is an amenable number.

1121220112112 is an abundant number, since it is smaller than the sum of its proper divisors (1165571321488).

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

1121220112112 is a wasteful number, since it uses less digits than its factorization.

1121220112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149253 (or 149247 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1121220112112 its reverse (2112110221211), we get a palindrome (3233330333323).

The spelling of 1121220112112 in words is "one trillion, one hundred twenty-one billion, two hundred twenty million, one hundred twelve thousand, one hundred twelve".