1228341228 has 12 divisors (see below), whose sum is σ = 2866129560. Its totient is φ = 409447072.

The previous prime is 1228341221. The next prime is 1228341253. The reversal of 1228341228 is 8221438221.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1228341221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51180873 + ... + 51180896.

It is an arithmetic number, because the mean of its divisors is an integer number (238844130).

Almost surely, 2^1228341228 is an apocalyptic number.

It is an amenable number.

1228341228 is an abundant number, since it is smaller than the sum of its proper divisors (1637788332).

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

1228341228 is a wasteful number, since it uses less digits than its factorization.

1228341228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102361776 (or 102361774 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 1228341228 is about 35047.6993253480. The cubic root of 1228341228 is about 1070.9594061896.

Adding to 1228341228 its reverse (8221438221), we get a palindrome (9449779449).

The spelling of 1228341228 in words is "one billion, two hundred twenty-eight million, three hundred forty-one thousand, two hundred twenty-eight".