545324010221 has 2 divisors, whose sum is σ = 545324010222. Its totient is φ = 545324010220.

The previous prime is 545324010211. The next prime is 545324010229. The reversal of 545324010221 is 122010423545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 542270232100 + 3053778121 = 736390^2 + 55261^2 .

It is a cyclic number.

It is not a de Polignac number, because 545324010221 - 2¹⁸ = 545323748077 is a prime.

It is a super-2 number, since 2×545324010221² (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 (545324010229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272662005110 + 272662005111.

It is an arithmetic number, because the mean of its divisors is an integer number (272662005111).

Almost surely, 2^545324010221 is an apocalyptic number.

It is an amenable number.

545324010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

545324010221 is an equidigital number, since it uses as much as digits as its factorization.

545324010221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 545324010221 its reverse (122010423545), we get a palindrome (667334433766).

The spelling of 545324010221 in words is "five hundred forty-five billion, three hundred twenty-four million, ten thousand, two hundred twenty-one".