221234441 has 8 divisors (see below), whose sum is σ = 226754880. Its totient is φ = 215731152.

The previous prime is 221234437. The next prime is 221234459. The reversal of 221234441 is 144432122.

221234441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221234441 - 2² = 221234437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221234471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24140 + ... + 32018.

It is an arithmetic number, because the mean of its divisors is an integer number (28344360).

Almost surely, 2^221234441 is an apocalyptic number.

It is an amenable number.

221234441 is a deficient number, since it is larger than the sum of its proper divisors (5520439).

221234441 is an equidigital number, since it uses as much as digits as its factorization.

221234441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8575.

The product of its digits is 1536, while the sum is 23.

The square root of 221234441 is about 14873.9517613847. The cubic root of 221234441 is about 604.8080724444.

Adding to 221234441 its reverse (144432122), we get a palindrome (365666563).

The spelling of 221234441 in words is "two hundred twenty-one million, two hundred thirty-four thousand, four hundred forty-one".