13510050221 has 2 divisors, whose sum is σ = 13510050222. Its totient is φ = 13510050220.

The previous prime is 13510050133. The next prime is 13510050289. The reversal of 13510050221 is 12205001531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8677854025 + 4832196196 = 93155^2 + 69514^2 .

It is an emirp because it is prime and its reverse (12205001531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13510050221 - 2¹⁰ = 13510049197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13510050193 and 13510050202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13510050121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6755025110 + 6755025111.

It is an arithmetic number, because the mean of its divisors is an integer number (6755025111).

Almost surely, 2^13510050221 is an apocalyptic number.

It is an amenable number.

13510050221 is a deficient number, since it is larger than the sum of its proper divisors (1).

13510050221 is an equidigital number, since it uses as much as digits as its factorization.

13510050221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 13510050221 its reverse (12205001531), we get a palindrome (25715051752).

The spelling of 13510050221 in words is "thirteen billion, five hundred ten million, fifty thousand, two hundred twenty-one".