130555221025 has 12 divisors (see below), whose sum is σ = 164542385404. Its totient is φ = 102731976000.

The previous prime is 130555221023. The next prime is 130555221029. The reversal of 130555221025 is 520122555031.

It can be written as a sum of positive squares in 6 ways, for example, as 65488904464 + 65066316561 = 255908^2 + 255081^2 .

It is not a de Polignac number, because 130555221025 - 2¹ = 130555221023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130555221023) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 42803466 + ... + 42806515.

Almost surely, 2^130555221025 is an apocalyptic number.

It is an amenable number.

130555221025 is a deficient number, since it is larger than the sum of its proper divisors (33987164379).

130555221025 is an equidigital number, since it uses as much as digits as its factorization.

130555221025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85610052 (or 85610047 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 130555221025 its reverse (520122555031), we get a palindrome (650677776056).

The spelling of 130555221025 in words is "one hundred thirty billion, five hundred fifty-five million, two hundred twenty-one thousand, twenty-five".