11251222 has 8 divisors (see below), whose sum is σ = 16891200. Its totient is φ = 5620824.

The previous prime is 11251213. The next prime is 11251277. The reversal of 11251222 is 22215211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11251196 and 11251205.

It is a congruent number.

It is an unprimeable number.

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, 2779 + ... + 5497.

It is an arithmetic number, because the mean of its divisors is an integer number (2111400).

Almost surely, 2^11251222 is an apocalyptic number.

11251222 is a deficient number, since it is larger than the sum of its proper divisors (5639978).

11251222 is a wasteful number, since it uses less digits than its factorization.

11251222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4790.

The product of its digits is 80, while the sum is 16.

The square root of 11251222 is about 3354.2841263077. The cubic root of 11251222 is about 224.0783500365.

Adding to 11251222 its reverse (22215211), we get a palindrome (33466433).

The spelling of 11251222 in words is "eleven million, two hundred fifty-one thousand, two hundred twenty-two".