11448221 has 8 divisors (see below), whose sum is σ = 11613888. Its totient is φ = 11284000.

The previous prime is 11448211. The next prime is 11448263. The reversal of 11448221 is 12284411.

11448221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11448221 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 (11448211) 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, 36656 + ... + 36966.

It is an arithmetic number, because the mean of its divisors is an integer number (1451736).

Almost surely, 2^11448221 is an apocalyptic number.

It is an amenable number.

11448221 is a deficient number, since it is larger than the sum of its proper divisors (165667).

11448221 is a wasteful number, since it uses less digits than its factorization.

11448221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723.

The product of its digits is 512, while the sum is 23.

The square root of 11448221 is about 3383.5219816044. The cubic root of 11448221 is about 225.3785955220.

The spelling of 11448221 in words is "eleven million, four hundred forty-eight thousand, two hundred twenty-one".