530331123221 has 2 divisors, whose sum is σ = 530331123222. Its totient is φ = 530331123220.

The previous prime is 530331123181. The next prime is 530331123263. The reversal of 530331123221 is 122321133035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 406388400196 + 123942723025 = 637486^2 + 352055^2 .

It is a cyclic number.

It is not a de Polignac number, because 530331123221 - 2¹⁰ = 530331122197 is a prime.

It is a super-2 number, since 2×530331123221² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530336123221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265165561610 + 265165561611.

It is an arithmetic number, because the mean of its divisors is an integer number (265165561611).

Almost surely, 2^530331123221 is an apocalyptic number.

It is an amenable number.

530331123221 is a deficient number, since it is larger than the sum of its proper divisors (1).

530331123221 is an equidigital number, since it uses as much as digits as its factorization.

530331123221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 530331123221 its reverse (122321133035), we get a palindrome (652652256256).

The spelling of 530331123221 in words is "five hundred thirty billion, three hundred thirty-one million, one hundred twenty-three thousand, two hundred twenty-one".