1220523323330 has 32 divisors (see below), whose sum is σ = 2206336564080. Its totient is φ = 486122158080.

The previous prime is 1220523323311. The next prime is 1220523323333. The reversal of 1220523323330 is 333233250221.

It can be written as a sum of positive squares in 8 ways, for example, as 296938896241 + 923584427089 = 544921^2 + 961033^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1220523323293 and 1220523323302.

It is not an unprimeable number, because it can be changed into a prime (1220523323333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22282016 + ... + 22336724.

Almost surely, 2^{1220523323330} is an apocalyptic number.

1220523323330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220523323330 is a deficient number, since it is larger than the sum of its proper divisors (985813240750).

1220523323330 is a wasteful number, since it uses less digits than its factorization.

1220523323330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64214.

The product of its (nonzero) digits is 19440, while the sum is 29.

Adding to 1220523323330 its reverse (333233250221), we get a palindrome (1553756573551).

The spelling of 1220523323330 in words is "one trillion, two hundred twenty billion, five hundred twenty-three million, three hundred twenty-three thousand, three hundred thirty".