1112220121120 has 24 divisors (see below), whose sum is σ = 2627620036524. Its totient is φ = 444888048384.

The previous prime is 1112220121039. The next prime is 1112220121127. The reversal of 1112220121120 is 211210222111.

It can be written as a sum of positive squares in 2 ways, for example, as 1061254349584 + 50965771536 = 1030172^2 + 225756^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1112220121094 and 1112220121103.

It is not an unprimeable number, because it can be changed into a prime (1112220121127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3475687719 + ... + 3475688038.

Almost surely, 2^{1112220121120} is an apocalyptic number.

1112220121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112220121120 is an abundant number, since it is smaller than the sum of its proper divisors (1515399915404).

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

1112220121120 is an equidigital number, since it uses as much as digits as its factorization.

1112220121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6951375772 (or 6951375764 counting only the distinct ones).

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

Adding to 1112220121120 its reverse (211210222111), we get a palindrome (1323430343231).

The spelling of 1112220121120 in words is "one trillion, one hundred twelve billion, two hundred twenty million, one hundred twenty-one thousand, one hundred twenty".