1120323221220 has 192 divisors, whose sum is σ = 3598247116800. Its totient is φ = 255131735040.

The previous prime is 1120323221203. The next prime is 1120323221239. The reversal of 1120323221220 is 221223230211.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 156488001 + ... + 156495159.

It is an arithmetic number, because the mean of its divisors is an integer number (18740870400).

Almost surely, 2^{1120323221220} is an apocalyptic number.

1120323221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1120323221220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1799123558400).

1120323221220 is an abundant number, since it is smaller than the sum of its proper divisors (2477923895580).

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

1120323221220 is a wasteful number, since it uses less digits than its factorization.

1120323221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8498 (or 8496 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1120323221220 its reverse (221223230211), we get a palindrome (1341546451431).

The spelling of 1120323221220 in words is "one trillion, one hundred twenty billion, three hundred twenty-three million, two hundred twenty-one thousand, two hundred twenty".