44011221 has 8 divisors (see below), whose sum is σ = 58714560. Its totient is φ = 29324352.

The previous prime is 44011217. The next prime is 44011229. The reversal of 44011221 is 12211044.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44011221 - 2² = 44011217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44011229) 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, 5016 + ... + 10638.

It is an arithmetic number, because the mean of its divisors is an integer number (7339320).

Almost surely, 2^44011221 is an apocalyptic number.

It is an amenable number.

44011221 is a deficient number, since it is larger than the sum of its proper divisors (14703339).

44011221 is a wasteful number, since it uses less digits than its factorization.

44011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8235.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 44011221 is about 6634.0953414916. The cubic root of 44011221 is about 353.0648416172.

Adding to 44011221 its reverse (12211044), we get a palindrome (56222265).

The spelling of 44011221 in words is "forty-four million, eleven thousand, two hundred twenty-one".