2021241 has 4 divisors (see below), whose sum is σ = 2694992. Its totient is φ = 1347492.

The previous prime is 2021237. The next prime is 2021251. The reversal of 2021241 is 1421202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2021241 - 2² = 2021237 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021251) 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, 336871 + ... + 336876.

It is an arithmetic number, because the mean of its divisors is an integer number (673748).

2^2021241 is an apocalyptic number.

It is an amenable number.

2021241 is a deficient number, since it is larger than the sum of its proper divisors (673751).

2021241 is an equidigital number, since it uses as much as digits as its factorization.

2021241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673750.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2021241 is about 1421.7035555980. The cubic root of 2021241 is about 126.4365682598.

Adding to 2021241 its reverse (1421202), we get a palindrome (3442443).

The spelling of 2021241 in words is "two million, twenty-one thousand, two hundred forty-one".