11340221 has 4 divisors (see below), whose sum is σ = 11353632. Its totient is φ = 11326812.

The previous prime is 11340163. The next prime is 11340227. The reversal of 11340221 is 12204311.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12204311 = 7 ⋅1743473.

It is a cyclic number.

It is not a de Polignac number, because 11340221 - 2²² = 7145917 is a prime.

It is a super-2 number, since 2×11340221² = 257201224657682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11340196 and 11340205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11340227) 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 3 ways as a sum of consecutive naturals, for example, 5345 + ... + 7158.

It is an arithmetic number, because the mean of its divisors is an integer number (2838408).

Almost surely, 2^11340221 is an apocalyptic number.

It is an amenable number.

11340221 is a deficient number, since it is larger than the sum of its proper divisors (13411).

11340221 is an equidigital number, since it uses as much as digits as its factorization.

11340221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13410.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 11340221 is about 3367.5244616780. The cubic root of 11340221 is about 224.6676310787.

Adding to 11340221 its reverse (12204311), we get a palindrome (23544532).

The spelling of 11340221 in words is "eleven million, three hundred forty thousand, two hundred twenty-one".