130444221 has 8 divisors (see below), whose sum is σ = 176873760. Its totient is φ = 85488752.

The previous prime is 130444217. The next prime is 130444229. The reversal of 130444221 is 122444031.

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 130444221 - 2² = 130444217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130444229) 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, 368310 + ... + 368663.

It is an arithmetic number, because the mean of its divisors is an integer number (22109220).

Almost surely, 2^130444221 is an apocalyptic number.

It is an amenable number.

130444221 is a deficient number, since it is larger than the sum of its proper divisors (46429539).

130444221 is an equidigital number, since it uses as much as digits as its factorization.

130444221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737035.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 130444221 is about 11421.2180173570. The cubic root of 130444221 is about 507.1560544945.

Adding to 130444221 its reverse (122444031), we get a palindrome (252888252).

The spelling of 130444221 in words is "one hundred thirty million, four hundred forty-four thousand, two hundred twenty-one".