130344400221021 has 54 divisors (see below), whose sum is σ = 223224371809530. Its totient is φ = 73077183256896.

The previous prime is 130344400220989. The next prime is 130344400221029. The reversal of 130344400221021 is 120122004443031.

130344400221021 is a `hidden beast` number, since 1 + 3 + 0 + 3 + 4 + 440 + 0 + 2 + 210 + 2 + 1 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 49034306002500 + 81310094218521 = 7002450^2 + 9017211^2 .

It is not a de Polignac number, because 130344400221021 - 2⁵ = 130344400220989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130344400221029) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 51371686 + ... + 53849223.

Almost surely, 2^{130344400221021} is an apocalyptic number.

It is an amenable number.

130344400221021 is a deficient number, since it is larger than the sum of its proper divisors (92879971588509).

130344400221021 is a wasteful number, since it uses less digits than its factorization.

130344400221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105221035 (or 105220972 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 130344400221021 its reverse (120122004443031), we get a palindrome (250466404664052).

The spelling of 130344400221021 in words is "one hundred thirty trillion, three hundred forty-four billion, four hundred million, two hundred twenty-one thousand, twenty-one".