44244022221 has 36 divisors (see below), whose sum is σ = 74505009852. Its totient is φ = 25226861184.

The previous prime is 44244022219. The next prime is 44244022237. The reversal of 44244022221 is 12222044244.

44244022221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 41109590025 + 3134432196 = 202755^2 + 55986^2 .

It is not a de Polignac number, because 44244022221 - 2¹ = 44244022219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44244027221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 91771 + ... + 311303.

It is an arithmetic number, because the mean of its divisors is an integer number (2069583607).

Almost surely, 2^44244022221 is an apocalyptic number.

It is an amenable number.

44244022221 is a deficient number, since it is larger than the sum of its proper divisors (30260987631).

44244022221 is a wasteful number, since it uses less digits than its factorization.

44244022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220010 (or 220000 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 44244022221 its reverse (12222044244), we get a palindrome (56466066465).

The spelling of 44244022221 in words is "forty-four billion, two hundred forty-four million, twenty-two thousand, two hundred twenty-one".