130221055 has 16 divisors (see below), whose sum is σ = 163367424. Its totient is φ = 99459360.

The previous prime is 130221001. The next prime is 130221097. The reversal of 130221055 is 550122031.

It is not a de Polignac number, because 130221055 - 2¹⁷ = 130089983 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 110620 + ... + 111790.

It is an arithmetic number, because the mean of its divisors is an integer number (10210464).

Almost surely, 2^130221055 is an apocalyptic number.

130221055 is a deficient number, since it is larger than the sum of its proper divisors (33146369).

130221055 is a wasteful number, since it uses less digits than its factorization.

130221055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 130221055 is about 11411.4440365801. Note that the first 3 decimals coincide. The cubic root of 130221055 is about 506.8666725861.

Adding to 130221055 its reverse (550122031), we get a palindrome (680343086).

The spelling of 130221055 in words is "one hundred thirty million, two hundred twenty-one thousand, fifty-five".