130216121 has 8 divisors (see below), whose sum is σ = 149235840. Its totient is φ = 111300768.

The previous prime is 130216117. The next prime is 130216129. The reversal of 130216121 is 121612031.

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 130216121 - 2² = 130216117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130216121.

It is not an unprimeable number, because it can be changed into a prime (130216129) 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, 23396 + ... + 28421.

It is an arithmetic number, because the mean of its divisors is an integer number (18654480).

Almost surely, 2^130216121 is an apocalyptic number.

It is an amenable number.

130216121 is a deficient number, since it is larger than the sum of its proper divisors (19019719).

130216121 is an equidigital number, since it uses as much as digits as its factorization.

130216121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52183.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 130216121 is about 11411.2278480451. The cubic root of 130216121 is about 506.8602708775.

Adding to 130216121 its reverse (121612031), we get a palindrome (251828152).

The spelling of 130216121 in words is "one hundred thirty million, two hundred sixteen thousand, one hundred twenty-one".