44201221 has 4 divisors (see below), whose sum is σ = 44297152. Its totient is φ = 44105292.

The previous prime is 44201219. The next prime is 44201231. The reversal of 44201221 is 12210244.

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 44201221 - 2¹ = 44201219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44201195 and 44201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44201231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47271 + ... + 48196.

It is an arithmetic number, because the mean of its divisors is an integer number (11074288).

Almost surely, 2^44201221 is an apocalyptic number.

It is an amenable number.

44201221 is a deficient number, since it is larger than the sum of its proper divisors (95931).

44201221 is an equidigital number, since it uses as much as digits as its factorization.

44201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95930.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 44201221 is about 6648.3998826785. The cubic root of 44201221 is about 353.5721820634.

Adding to 44201221 its reverse (12210244), we get a palindrome (56411465).

The spelling of 44201221 in words is "forty-four million, two hundred one thousand, two hundred twenty-one".