1330212228 has 12 divisors (see below), whose sum is σ = 3103828560. Its totient is φ = 443404072.

The previous prime is 1330212227. The next prime is 1330212307. The reversal of 1330212228 is 8222120331.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1330212198 and 1330212207.

It is not an unprimeable number, because it can be changed into a prime (1330212227) 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, 55425498 + ... + 55425521.

It is an arithmetic number, because the mean of its divisors is an integer number (258652380).

Almost surely, 2^1330212228 is an apocalyptic number.

It is an amenable number.

1330212228 is an abundant number, since it is smaller than the sum of its proper divisors (1773616332).

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

1330212228 is a wasteful number, since it uses less digits than its factorization.

1330212228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110851026 (or 110851024 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1330212228 is about 36472.0746325185. The cubic root of 1330212228 is about 1099.7829400911.

Adding to 1330212228 its reverse (8222120331), we get a palindrome (9552332559).

The spelling of 1330212228 in words is "one billion, three hundred thirty million, two hundred twelve thousand, two hundred twenty-eight".