1234443221 has 8 divisors (see below), whose sum is σ = 1347434688. Its totient is φ = 1121580000.

The previous prime is 1234443163. The next prime is 1234443227. The reversal of 1234443221 is 1223444321.

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 1234443221 - 2¹⁰ = 1234442197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234443227) 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, 11345 + ... + 50966.

It is an arithmetic number, because the mean of its divisors is an integer number (168429336).

Almost surely, 2^1234443221 is an apocalyptic number.

1234443221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1234443221 is a deficient number, since it is larger than the sum of its proper divisors (112991467).

1234443221 is a wasteful number, since it uses less digits than its factorization.

1234443221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64123.

The product of its digits is 4608, while the sum is 26.

The square root of 1234443221 is about 35134.6441706758. The cubic root of 1234443221 is about 1072.7298684465.

Adding to 1234443221 its reverse (1223444321), we get a palindrome (2457887542).

The spelling of 1234443221 in words is "one billion, two hundred thirty-four million, four hundred forty-three thousand, two hundred twenty-one".