1121220210112 has 28 divisors (see below), whose sum is σ = 2266901009496. Its totient is φ = 550032554240.

The previous prime is 1121220210109. The next prime is 1121220210127. The reversal of 1121220210112 is 2110120221211.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165270814 + ... + 165277597.

Almost surely, 2^{1121220210112} is an apocalyptic number.

It is an amenable number.

1121220210112 is an abundant number, since it is smaller than the sum of its proper divisors (1145680799384).

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

1121220210112 is an equidigital number, since it uses as much as digits as its factorization.

1121220210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330548476 (or 330548466 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1121220210112 its reverse (2110120221211), we get a palindrome (3231340431323).

The spelling of 1121220210112 in words is "one trillion, one hundred twenty-one billion, two hundred twenty million, two hundred ten thousand, one hundred twelve".