1220313025 has 6 divisors (see below), whose sum is σ = 1513188182. Its totient is φ = 976250400.

The previous prime is 1220313013. The next prime is 1220313037. The reversal of 1220313025 is 5203130221.

It is an interprime number because it is at equal distance from previous prime (1220313013) and next prime (1220313037).

It can be written as a sum of positive squares in 3 ways, for example, as 76317696 + 1143995329 = 8736^2 + 33823^2 .

It is not a de Polignac number, because 1220313025 - 2⁷ = 1220312897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220312993 and 1220313011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24406236 + ... + 24406285.

Almost surely, 2^1220313025 is an apocalyptic number.

It is an amenable number.

1220313025 is a deficient number, since it is larger than the sum of its proper divisors (292875157).

1220313025 is an equidigital number, since it uses as much as digits as its factorization.

1220313025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48812531 (or 48812526 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1220313025 is about 34932.9790455953. The cubic root of 1220313025 is about 1068.6211093610.

Adding to 1220313025 its reverse (5203130221), we get a palindrome (6423443246).

The spelling of 1220313025 in words is "one billion, two hundred twenty million, three hundred thirteen thousand, twenty-five".