130252221 has 48 divisors (see below), whose sum is σ = 211947840. Its totient is φ = 76412160.

The previous prime is 130252207. The next prime is 130252229. The reversal of 130252221 is 122252031.

It is not a de Polignac number, because 130252221 - 2¹⁷ = 130121149 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 130252194 and 130252203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130252229) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 484075 + ... + 484343.

It is an arithmetic number, because the mean of its divisors is an integer number (4415580).

Almost surely, 2^130252221 is an apocalyptic number.

130252221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130252221 is a deficient number, since it is larger than the sum of its proper divisors (81695619).

130252221 is a wasteful number, since it uses less digits than its factorization.

130252221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 130252221 is about 11412.8095138752. The cubic root of 130252221 is about 506.9071057471.

The spelling of 130252221 in words is "one hundred thirty million, two hundred fifty-two thousand, two hundred twenty-one".