11245221 has 24 divisors (see below), whose sum is σ = 17611776. Its totient is φ = 6873120.

The previous prime is 11245187. The next prime is 11245259. The reversal of 11245221 is 12254211.

11245221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11245221 - 2¹³ = 11237029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11245194 and 11245203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11245261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25876 + ... + 26306.

It is an arithmetic number, because the mean of its divisors is an integer number (733824).

Almost surely, 2^11245221 is an apocalyptic number.

It is an amenable number.

11245221 is a deficient number, since it is larger than the sum of its proper divisors (6366555).

11245221 is a wasteful number, since it uses less digits than its factorization.

11245221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673 (or 670 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 11245221 is about 3353.3894793179. The cubic root of 11245221 is about 224.0385044885.

Adding to 11245221 its reverse (12254211), we get a palindrome (23499432).

The spelling of 11245221 in words is "eleven million, two hundred forty-five thousand, two hundred twenty-one".