1021120 has 28 divisors (see below), whose sum is σ = 2432304. Its totient is φ = 408320.

The previous prime is 1021093. The next prime is 1021123. The reversal of 1021120 is 211201.

It is not an unprimeable number, because it can be changed into a prime (1021123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276 + ... + 1915.

It is an arithmetic number, because the mean of its divisors is an integer number (86868).

2^1021120 is an apocalyptic number.

1021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021120 is an abundant number, since it is smaller than the sum of its proper divisors (1411184).

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

1021120 is an equidigital number, since it uses as much as digits as its factorization.

1021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3208 (or 3198 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1021120 is about 1010.5048243329. The cubic root of 1021120 is about 100.6991011860.

Adding to 1021120 its reverse (211201), we get a palindrome (1232321).

The spelling of 1021120 in words is "one million, twenty-one thousand, one hundred twenty".