130042221 has 8 divisors (see below), whose sum is σ = 173762784. Its totient is φ = 86508240.

The previous prime is 130042169. The next prime is 130042267. The reversal of 130042221 is 122240031.

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

It is not a de Polignac number, because 130042221 - 2⁷ = 130042093 is a prime.

It is a super-2 number, since 2×130042221² = 33821958485225682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 130042221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130042271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45010 + ... + 47811.

It is an arithmetic number, because the mean of its divisors is an integer number (21720348).

Almost surely, 2^130042221 is an apocalyptic number.

It is an amenable number.

130042221 is a deficient number, since it is larger than the sum of its proper divisors (43720563).

130042221 is an equidigital number, since it uses as much as digits as its factorization.

130042221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93291.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 130042221 is about 11403.6056140152. The cubic root of 130042221 is about 506.6345377730.

Adding to 130042221 its reverse (122240031), we get a palindrome (252282252).

It can be divided in two parts, 13004 and 2221, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 130042221 in words is "one hundred thirty million, forty-two thousand, two hundred twenty-one".