11452221 has 12 divisors (see below), whose sum is σ = 18046080. Its totient is φ = 6940680.

The previous prime is 11452213. The next prime is 11452223. The reversal of 11452221 is 12225411.

It is not a de Polignac number, because 11452221 - 2³ = 11452213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11452194 and 11452203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11452223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57741 + ... + 57938.

It is an arithmetic number, because the mean of its divisors is an integer number (1503840).

Almost surely, 2^11452221 is an apocalyptic number.

11452221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11452221 is a deficient number, since it is larger than the sum of its proper divisors (6593859).

11452221 is a wasteful number, since it uses less digits than its factorization.

11452221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115696 (or 115693 counting only the distinct ones).

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

The square root of 11452221 is about 3384.1130300272. The cubic root of 11452221 is about 225.4048415040.

Adding to 11452221 its reverse (12225411), we get a palindrome (23677632).

The spelling of 11452221 in words is "eleven million, four hundred fifty-two thousand, two hundred twenty-one".