2241015221 has 4 divisors (see below), whose sum is σ = 2241131244. Its totient is φ = 2240899200.

The previous prime is 2241015197. The next prime is 2241015229. The reversal of 2241015221 is 1225101422.

2241015221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 237468100 + 2003547121 = 15410^2 + 44761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2241015221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2241015193 and 2241015202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2241015229) 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, 21290 + ... + 70251.

It is an arithmetic number, because the mean of its divisors is an integer number (560282811).

Almost surely, 2^2241015221 is an apocalyptic number.

It is an amenable number.

2241015221 is a deficient number, since it is larger than the sum of its proper divisors (116023).

2241015221 is an equidigital number, since it uses as much as digits as its factorization.

2241015221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116022.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2241015221 is about 47339.3622791858. The cubic root of 2241015221 is about 1308.6241641731.

Adding to 2241015221 its reverse (1225101422), we get a palindrome (3466116643).

The spelling of 2241015221 in words is "two billion, two hundred forty-one million, fifteen thousand, two hundred twenty-one".