1120220121024 has 112 divisors (see below), whose sum is σ = 3296567895040. Its totient is φ = 373029338880.

The previous prime is 1120220120969. The next prime is 1120220121049. The reversal of 1120220121024 is 4201210220211.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1120220120988 and 1120220121006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1385367 + ... + 2039529.

It is an arithmetic number, because the mean of its divisors is an integer number (29433641920).

Almost surely, 2^{1120220121024} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1120220121024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1648283947520).

1120220121024 is an abundant number, since it is smaller than the sum of its proper divisors (2176347774016).

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

1120220121024 is an equidigital number, since it uses as much as digits as its factorization.

1120220121024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655175 (or 655159 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1120220121024 its reverse (4201210220211), we get a palindrome (5321430341235).

The spelling of 1120220121024 in words is "one trillion, one hundred twenty billion, two hundred twenty million, one hundred twenty-one thousand, twenty-four".