130032221 has 8 divisors (see below), whose sum is σ = 144872064. Its totient is φ = 115695520.

The previous prime is 130032211. The next prime is 130032233. The reversal of 130032221 is 122230031.

It is a happy number.

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 130032221 - 2⁶ = 130032157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 130032196 and 130032205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130032211) 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, 125240 + ... + 126273.

It is an arithmetic number, because the mean of its divisors is an integer number (18109008).

Almost surely, 2^130032221 is an apocalyptic number.

130032221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130032221 is a deficient number, since it is larger than the sum of its proper divisors (14839843).

130032221 is a wasteful number, since it uses less digits than its factorization.

130032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251571.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 130032221 is about 11403.1671477708. The cubic root of 130032221 is about 506.6215510286.

Adding to 130032221 its reverse (122230031), we get a palindrome (252262252).

The spelling of 130032221 in words is "one hundred thirty million, thirty-two thousand, two hundred twenty-one".