1210320228 has 96 divisors (see below), whose sum is σ = 3170119680. Its totient is φ = 356872320.

The previous prime is 1210320179. The next prime is 1210320229. The reversal of 1210320228 is 8220230121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1210320229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 516283 + ... + 518621.

It is an arithmetic number, because the mean of its divisors is an integer number (33022080).

Almost surely, 2^1210320228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210320228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1585059840).

1210320228 is an abundant number, since it is smaller than the sum of its proper divisors (1959799452).

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

1210320228 is a wasteful number, since it uses less digits than its factorization.

1210320228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497 (or 2495 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1210320228 is about 34789.6569112143. The cubic root of 1210320228 is about 1065.6962327927.

Adding to 1210320228 its reverse (8220230121), we get a palindrome (9430550349).

The spelling of 1210320228 in words is "one billion, two hundred ten million, three hundred twenty thousand, two hundred twenty-eight".