1044221421 has 8 divisors (see below), whose sum is σ = 1398271680. Its totient is φ = 693159392.

The previous prime is 1044221411. The next prime is 1044221443. The reversal of 1044221421 is 1241224401.

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 1044221421 - 2¹⁸ = 1043959277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044221401) 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, 746241 + ... + 747638.

It is an arithmetic number, because the mean of its divisors is an integer number (174783960).

Almost surely, 2^1044221421 is an apocalyptic number.

It is an amenable number.

1044221421 is a deficient number, since it is larger than the sum of its proper divisors (354050259).

1044221421 is a wasteful number, since it uses less digits than its factorization.

1044221421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494115.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1044221421 is about 32314.4150651068. The cubic root of 1044221421 is about 1014.5283777210.

Adding to 1044221421 its reverse (1241224401), we get a palindrome (2285445822).

The spelling of 1044221421 in words is "one billion, forty-four million, two hundred twenty-one thousand, four hundred twenty-one".