1121112221120 has 28 divisors (see below), whose sum is σ = 2669648477304. Its totient is φ = 448444888320.

The previous prime is 1121112221093. The next prime is 1121112221179. The reversal of 1121112221120 is 211222111211.

It is a super-2 number, since 2×1121112221120² (a number of 25 digits) contains 22 as substring.

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, 1751737526 + ... + 1751738165.

Almost surely, 2^{1121112221120} is an apocalyptic number.

1121112221120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121112221120 is an abundant number, since it is smaller than the sum of its proper divisors (1548536256184).

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

1121112221120 is an equidigital number, since it uses as much as digits as its factorization.

1121112221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3503475708 (or 3503475698 counting only the distinct ones).

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

Adding to 1121112221120 its reverse (211222111211), we get a palindrome (1332334332331).

The spelling of 1121112221120 in words is "one trillion, one hundred twenty-one billion, one hundred twelve million, two hundred twenty-one thousand, one hundred twenty".