1111228 has 12 divisors (see below), whose sum is σ = 1952440. Its totient is φ = 553392.

The previous prime is 1111219. The next prime is 1111247. The reversal of 1111228 is 8221111.

It is an Ulam number.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

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, 1150 + ... + 1882.

2^1111228 is an apocalyptic number.

It is an amenable number.

1111228 is a deficient number, since it is larger than the sum of its proper divisors (841212).

1111228 is a wasteful number, since it uses less digits than its factorization.

1111228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116 (or 1114 counting only the distinct ones).

The product of its digits is 32, while the sum is 16.

The square root of 1111228 is about 1054.1479971996. The cubic root of 1111228 is about 103.5780487473.

Adding to 1111228 its reverse (8221111), we get a palindrome (9332339).

The spelling of 1111228 in words is "one million, one hundred eleven thousand, two hundred twenty-eight".