11225181 has 16 divisors (see below), whose sum is σ = 17187840. Its totient is φ = 6444720.

The previous prime is 11225167. The next prime is 11225183. The reversal of 11225181 is 18152211.

11225181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11225181 - 2¹¹ = 11223133 is a prime.

It is a super-2 number, since 2×11225181² = 252009376965522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11225183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8325 + ... + 9578.

It is an arithmetic number, because the mean of its divisors is an integer number (1074240).

Almost surely, 2^11225181 is an apocalyptic number.

11225181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11225181 is a deficient number, since it is larger than the sum of its proper divisors (5962659).

11225181 is a wasteful number, since it uses less digits than its factorization.

11225181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17936.

The product of its digits is 160, while the sum is 21.

The square root of 11225181 is about 3350.4001253582. The cubic root of 11225181 is about 223.9053397331.

Adding to 11225181 its reverse (18152211), we get a palindrome (29377392).

The spelling of 11225181 in words is "eleven million, two hundred twenty-five thousand, one hundred eighty-one".