44242204022221 has 8 divisors (see below), whose sum is σ = 45077361953400. Its totient is φ = 43407060882432.

The previous prime is 44242204022189. The next prime is 44242204022227. The reversal of 44242204022221 is 12222040224244.

It can be written as a sum of positive squares in 4 ways, for example, as 2727828804996 + 41514375217225 = 1651614^2 + 6443165^2 .

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 44242204022221 - 2⁵ = 44242204022189 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 (44242204022227) 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, 2435901 + ... + 9716893.

It is an arithmetic number, because the mean of its divisors is an integer number (5634670244175).

Almost surely, 2^{44242204022221} is an apocalyptic number.

It is an amenable number.

44242204022221 is a deficient number, since it is larger than the sum of its proper divisors (835157931179).

44242204022221 is a wasteful number, since it uses less digits than its factorization.

44242204022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7395695.

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 44242204022221 its reverse (12222040224244), we get a palindrome (56464244246465).

The spelling of 44242204022221 in words is "forty-four trillion, two hundred forty-two billion, two hundred four million, twenty-two thousand, two hundred twenty-one".