1001228 has 6 divisors (see below), whose sum is σ = 1752156. Its totient is φ = 500612.

The previous prime is 1001219. The next prime is 1001237. The reversal of 1001228 is 8221001.

1001228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1001219) and next prime (1001237).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125150 + ... + 125157.

It is an arithmetic number, because the mean of its divisors is an integer number (292026).

2^1001228 is an apocalyptic number.

It is an amenable number.

1001228 is a deficient number, since it is larger than the sum of its proper divisors (750928).

1001228 is a wasteful number, since it uses less digits than its factorization.

1001228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250311 (or 250309 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1001228 is about 1000.6138116176. The cubic root of 1001228 is about 100.0409165894.

Adding to 1001228 its reverse (8221001), we get a palindrome (9222229).

The spelling of 1001228 in words is "one million, one thousand, two hundred twenty-eight".