13150005221 has 4 divisors (see below), whose sum is σ = 13153171200. Its totient is φ = 13146839244.

The previous prime is 13150005181. The next prime is 13150005233. The reversal of 13150005221 is 12250005131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13150005221 - 2¹⁸ = 13149743077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13150005193 and 13150005202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13150005251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1576751 + ... + 1585068.

It is an arithmetic number, because the mean of its divisors is an integer number (3288292800).

Almost surely, 2^13150005221 is an apocalyptic number.

It is an amenable number.

13150005221 is a deficient number, since it is larger than the sum of its proper divisors (3165979).

13150005221 is an equidigital number, since it uses as much as digits as its factorization.

13150005221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3165978.

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

The spelling of 13150005221 in words is "thirteen billion, one hundred fifty million, five thousand, two hundred twenty-one".