11231224 has 8 divisors (see below), whose sum is σ = 21058560. Its totient is φ = 5615608.

The previous prime is 11231219. The next prime is 11231243. The reversal of 11231224 is 42213211.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×11231224² = 252280785076352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11231198 and 11231207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701944 + ... + 701959.

It is an arithmetic number, because the mean of its divisors is an integer number (2632320).

Almost surely, 2^11231224 is an apocalyptic number.

It is an amenable number.

11231224 is a deficient number, since it is larger than the sum of its proper divisors (9827336).

11231224 is a wasteful number, since it uses less digits than its factorization.

11231224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403909 (or 1403905 counting only the distinct ones).

The product of its digits is 96, while the sum is 16.

The square root of 11231224 is about 3351.3018366002. The cubic root of 11231224 is about 223.9455118318.

Adding to 11231224 its reverse (42213211), we get a palindrome (53444435).

The spelling of 11231224 in words is "eleven million, two hundred thirty-one thousand, two hundred twenty-four".