1220304125 has 16 divisors (see below), whose sum is σ = 1529349120. Its totient is φ = 972134800.

The previous prime is 1220304121. The next prime is 1220304167. The reversal of 1220304125 is 5214030221.

It is not a de Polignac number, because 1220304125 - 2² = 1220304121 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1220304097 and 1220304106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220304121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9452 + ... + 50298.

It is an arithmetic number, because the mean of its divisors is an integer number (95584320).

Almost surely, 2^1220304125 is an apocalyptic number.

It is an amenable number.

1220304125 is a deficient number, since it is larger than the sum of its proper divisors (309044995).

1220304125 is an equidigital number, since it uses as much as digits as its factorization.

1220304125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41101 (or 41091 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1220304125 is about 34932.8516585749. The cubic root of 1220304125 is about 1068.6185114617.

Adding to 1220304125 its reverse (5214030221), we get a palindrome (6434334346).

The spelling of 1220304125 in words is "one billion, two hundred twenty million, three hundred four thousand, one hundred twenty-five".