2021101120 has 28 divisors (see below), whose sum is σ = 4812747804. Its totient is φ = 808440320.

The previous prime is 2021101067. The next prime is 2021101127. The reversal of 2021101120 is 211011202.

It can be written as a sum of positive squares in 2 ways, for example, as 271854144 + 1749246976 = 16488^2 + 41824^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2021101097 and 2021101106.

It is not an unprimeable number, because it can be changed into a prime (2021101127) 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, 3157651 + ... + 3158290.

Almost surely, 2^2021101120 is an apocalyptic number.

2021101120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021101120 is an abundant number, since it is smaller than the sum of its proper divisors (2791646684).

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

2021101120 is an equidigital number, since it uses as much as digits as its factorization.

2021101120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6315958 (or 6315948 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2021101120 is about 44956.6582387971. The cubic root of 2021101120 is about 1264.3365151123.

Adding to 2021101120 its reverse (211011202), we get a palindrome (2232112322).

The spelling of 2021101120 in words is "two billion, twenty-one million, one hundred one thousand, one hundred twenty".