4244054221 has 4 divisors (see below), whose sum is σ = 4629877344. Its totient is φ = 3858231100.

The previous prime is 4244054209. The next prime is 4244054249. The reversal of 4244054221 is 1224504424.

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 4244054221 - 2¹³ = 4244046029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4244054221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4244054201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192911545 + ... + 192911566.

It is an arithmetic number, because the mean of its divisors is an integer number (1157469336).

Almost surely, 2^4244054221 is an apocalyptic number.

It is an amenable number.

4244054221 is a deficient number, since it is larger than the sum of its proper divisors (385823123).

4244054221 is a wasteful number, since it uses less digits than its factorization.

4244054221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385823122.

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 4244054221 is about 65146.4060482234. The cubic root of 4244054221 is about 1619.0501749380.

Adding to 4244054221 its reverse (1224504424), we get a palindrome (5468558645).

The spelling of 4244054221 in words is "four billion, two hundred forty-four million, fifty-four thousand, two hundred twenty-one".