1220322330 has 48 divisors (see below), whose sum is σ = 3174971904. Its totient is φ = 325200480.

The previous prime is 1220322317. The next prime is 1220322331. The reversal of 1220322330 is 332230221.

It is a happy number.

1220322330 is a `hidden beast` number, since 12 + 2 + 0 + 322 + 330 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1220322331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164767 + ... + 172013.

It is an arithmetic number, because the mean of its divisors is an integer number (66145248).

Almost surely, 2^1220322330 is an apocalyptic number.

1220322330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220322330 is an abundant number, since it is smaller than the sum of its proper divisors (1954649574).

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

1220322330 is a wasteful number, since it uses less digits than its factorization.

1220322330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9131 (or 9128 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1220322330 is about 34933.1122289440. The cubic root of 1220322330 is about 1068.6238254658.

Adding to 1220322330 its reverse (332230221), we get a palindrome (1552552551).

The spelling of 1220322330 in words is "one billion, two hundred twenty million, three hundred twenty-two thousand, three hundred thirty".