4221055 has 8 divisors (see below), whose sum is σ = 5090544. Its totient is φ = 3360000.

The previous prime is 4221047. The next prime is 4221109. The reversal of 4221055 is 5501224.

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

It is not a de Polignac number, because 4221055 - 2³ = 4221047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 946 + ... + 3055.

It is an arithmetic number, because the mean of its divisors is an integer number (636318).

Almost surely, 2^4221055 is an apocalyptic number.

4221055 is a deficient number, since it is larger than the sum of its proper divisors (869489).

4221055 is a wasteful number, since it uses less digits than its factorization.

4221055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4217.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 4221055 is about 2054.5206253528. The cubic root of 4221055 is about 161.6120243765.

Adding to 4221055 its reverse (5501224), we get a palindrome (9722279).

The spelling of 4221055 in words is "four million, two hundred twenty-one thousand, fifty-five".