2021120 has 36 divisors (see below), whose sum is σ = 4844280. Its totient is φ = 807936.

The previous prime is 2021119. The next prime is 2021137. The reversal of 2021120 is 211202.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 2021098 and 2021107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491 + ... + 2069.

2^2021120 is an apocalyptic number.

2021120 is a gapful number since it is divisible by the number (20) 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 2021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2422140).

2021120 is an abundant number, since it is smaller than the sum of its proper divisors (2823160).

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

2021120 is an equidigital number, since it uses as much as digits as its factorization.

2021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600 (or 1586 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 2021120 is about 1421.6610003795. The cubic root of 2021120 is about 126.4340452009.

Adding to 2021120 its reverse (211202), we get a palindrome (2232322).

The spelling of 2021120 in words is "two million, twenty-one thousand, one hundred twenty".