11224261 has 4 divisors (see below), whose sum is σ = 11378092. Its totient is φ = 11070432.

The previous prime is 11224249. The next prime is 11224271. The reversal of 11224261 is 16242211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8300161 + 2924100 = 2881^2 + 1710^2 .

It is a cyclic number.

It is not a de Polignac number, because 11224261 - 2⁵ = 11224229 is a prime.

It is a super-2 number, since 2×11224261² = 251968069992242, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11224271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76806 + ... + 76951.

It is an arithmetic number, because the mean of its divisors is an integer number (2844523).

Almost surely, 2^11224261 is an apocalyptic number.

It is an amenable number.

11224261 is a deficient number, since it is larger than the sum of its proper divisors (153831).

11224261 is an equidigital number, since it uses as much as digits as its factorization.

11224261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153830.

The product of its digits is 192, while the sum is 19.

The square root of 11224261 is about 3350.2628255109. The cubic root of 11224261 is about 223.8992225774.

Adding to 11224261 its reverse (16242211), we get a palindrome (27466472).

The spelling of 11224261 in words is "eleven million, two hundred twenty-four thousand, two hundred sixty-one".