130221331021 has 8 divisors (see below), whose sum is σ = 136851079904. Its totient is φ = 123755279760.

The previous prime is 130221330961. The next prime is 130221331033. The reversal of 130221331021 is 120133122031.

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 130221331021 - 2⁷ = 130221330893 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 130221331021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130221334021) 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, 40922775 + ... + 40925956.

It is an arithmetic number, because the mean of its divisors is an integer number (17106384988).

Almost surely, 2^130221331021 is an apocalyptic number.

It is an amenable number.

130221331021 is a deficient number, since it is larger than the sum of its proper divisors (6629748883).

130221331021 is an equidigital number, since it uses as much as digits as its factorization.

130221331021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81848811.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 130221331021 its reverse (120133122031), we get a palindrome (250354453052).

The spelling of 130221331021 in words is "one hundred thirty billion, two hundred twenty-one million, three hundred thirty-one thousand, twenty-one".