13321224200461 has 2 divisors, whose sum is σ = 13321224200462. Its totient is φ = 13321224200460.

The previous prime is 13321224200423. The next prime is 13321224200507. The reversal of 13321224200461 is 16400242212331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9861289392361 + 3459934808100 = 3140269^2 + 1860090^2 .

It is a cyclic number.

It is not a de Polignac number, because 13321224200461 - 2²⁹ = 13320687329549 is a prime.

It is a super-2 number, since 2×13321224200461² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13321224204461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660612100230 + 6660612100231.

It is an arithmetic number, because the mean of its divisors is an integer number (6660612100231).

Almost surely, 2^{13321224200461} is an apocalyptic number.

It is an amenable number.

13321224200461 is a deficient number, since it is larger than the sum of its proper divisors (1).

13321224200461 is an equidigital number, since it uses as much as digits as its factorization.

13321224200461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 13321224200461 its reverse (16400242212331), we get a palindrome (29721466412792).

The spelling of 13321224200461 in words is "thirteen trillion, three hundred twenty-one billion, two hundred twenty-four million, two hundred thousand, four hundred sixty-one".