1220304312424 has 32 divisors (see below), whose sum is σ = 2290290381000. Its totient is φ = 609560404992.

The previous prime is 1220304312341. The next prime is 1220304312431. The reversal of 1220304312424 is 4242134030221.

It can be written as a sum of positive squares in 4 ways, for example, as 1193447002500 + 26857309924 = 1092450^2 + 163882^2 .

It is a super-2 number, since 2×1220304312424² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220304312392 and 1220304312401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80312572 + ... + 80327764.

Almost surely, 2^{1220304312424} is an apocalyptic number.

It is an amenable number.

1220304312424 is a deficient number, since it is larger than the sum of its proper divisors (1069986068576).

1220304312424 is a wasteful number, since it uses less digits than its factorization.

1220304312424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24277 (or 24273 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1220304312424 its reverse (4242134030221), we get a palindrome (5462438342645).

The spelling of 1220304312424 in words is "one trillion, two hundred twenty billion, three hundred four million, three hundred twelve thousand, four hundred twenty-four".