130451042221 has 2 divisors, whose sum is σ = 130451042222. Its totient is φ = 130451042220.

The previous prime is 130451042201. The next prime is 130451042261. The reversal of 130451042221 is 122240154031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103919193225 + 26531848996 = 322365^2 + 162886^2 .

It is a cyclic number.

It is not a de Polignac number, because 130451042221 - 2²³ = 130442653613 is a prime.

It is a super-2 number, since 2×130451042221² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130451042201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65225521110 + 65225521111.

It is an arithmetic number, because the mean of its divisors is an integer number (65225521111).

Almost surely, 2^130451042221 is an apocalyptic number.

It is an amenable number.

130451042221 is a deficient number, since it is larger than the sum of its proper divisors (1).

130451042221 is an equidigital number, since it uses as much as digits as its factorization.

130451042221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 130451042221 its reverse (122240154031), we get a palindrome (252691196252).

The spelling of 130451042221 in words is "one hundred thirty billion, four hundred fifty-one million, forty-two thousand, two hundred twenty-one".