171412467221 has 4 divisors (see below), whose sum is σ = 175398803712. Its totient is φ = 167426130732.

The previous prime is 171412467209. The next prime is 171412467223. The reversal of 171412467221 is 122764214171.

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 171412467221 - 2¹⁴ = 171412450837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171412467223) 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, 1993168181 + ... + 1993168266.

It is an arithmetic number, because the mean of its divisors is an integer number (43849700928).

Almost surely, 2^171412467221 is an apocalyptic number.

It is an amenable number.

171412467221 is a deficient number, since it is larger than the sum of its proper divisors (3986336491).

171412467221 is an equidigital number, since it uses as much as digits as its factorization.

171412467221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3986336490.

The product of its digits is 37632, while the sum is 38.

The spelling of 171412467221 in words is "one hundred seventy-one billion, four hundred twelve million, four hundred sixty-seven thousand, two hundred twenty-one".