221254271 has 8 divisors (see below), whose sum is σ = 253662240. Its totient is φ = 189046368.

The previous prime is 221254249. The next prime is 221254283. The reversal of 221254271 is 172452122.

221254271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221254271 - 2¹⁰ = 221253247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221254271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221254571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47636 + ... + 52073.

It is an arithmetic number, because the mean of its divisors is an integer number (31707780).

Almost surely, 2^221254271 is an apocalyptic number.

221254271 is a deficient number, since it is larger than the sum of its proper divisors (32407969).

221254271 is an equidigital number, since it uses as much as digits as its factorization.

221254271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100033.

The product of its digits is 2240, while the sum is 26.

The square root of 221254271 is about 14874.6183480451. The cubic root of 221254271 is about 604.8261422436.

The spelling of 221254271 in words is "two hundred twenty-one million, two hundred fifty-four thousand, two hundred seventy-one".