1011228 has 24 divisors (see below), whose sum is σ = 2498832. Its totient is φ = 317184.

The previous prime is 1011221. The next prime is 1011229. The reversal of 1011228 is 8221101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2275 + ... + 2682.

It is an arithmetic number, because the mean of its divisors is an integer number (104118).

2^1011228 is an apocalyptic number.

It is an amenable number.

1011228 is an abundant number, since it is smaller than the sum of its proper divisors (1487604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011228 is a wasteful number, since it uses less digits than its factorization.

1011228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4981 (or 4979 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1011228 is about 1005.5983293542. The cubic root of 1011228 is about 100.3728745840.

Adding to 1011228 its reverse (8221101), we get a palindrome (9232329).

The spelling of 1011228 in words is "one million, eleven thousand, two hundred twenty-eight".