221144341 has 4 divisors (see below), whose sum is σ = 241248384. Its totient is φ = 201040300.

The previous prime is 221144321. The next prime is 221144369. The reversal of 221144341 is 143441122.

It is a happy number.

221144341 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 Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221144341 - 2⁹ = 221143829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221144311) 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, 10052005 + ... + 10052026.

It is an arithmetic number, because the mean of its divisors is an integer number (60312096).

Almost surely, 2^221144341 is an apocalyptic number.

It is an amenable number.

221144341 is a deficient number, since it is larger than the sum of its proper divisors (20104043).

221144341 is a wasteful number, since it uses less digits than its factorization.

221144341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20104042.

The product of its digits is 768, while the sum is 22.

The square root of 221144341 is about 14870.9226680795. The cubic root of 221144341 is about 604.7259565279.

Adding to 221144341 its reverse (143441122), we get a palindrome (364585463).

The spelling of 221144341 in words is "two hundred twenty-one million, one hundred forty-four thousand, three hundred forty-one".