130025221 has 8 divisors (see below), whose sum is σ = 132377688. Its totient is φ = 127680000.

The previous prime is 130025179. The next prime is 130025237. The reversal of 130025221 is 122520031.

It can be written as a sum of positive squares in 4 ways, for example, as 9333025 + 120692196 = 3055^2 + 10986^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130025221 - 2²⁵ = 96470789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130025195 and 130025204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130020221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45021 + ... + 47821.

It is an arithmetic number, because the mean of its divisors is an integer number (16547211).

Almost surely, 2^130025221 is an apocalyptic number.

It is an amenable number.

130025221 is a deficient number, since it is larger than the sum of its proper divisors (2352467).

130025221 is an equidigital number, since it uses as much as digits as its factorization.

130025221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 130025221 is about 11402.8602113680. The cubic root of 130025221 is about 506.6124599114.

Adding to 130025221 its reverse (122520031), we get a palindrome (252545252).

The spelling of 130025221 in words is "one hundred thirty million, twenty-five thousand, two hundred twenty-one".