4171222 has 32 divisors (see below), whose sum is σ = 7620480. Its totient is φ = 1687680.

The previous prime is 4171213. The next prime is 4171229. The reversal of 4171222 is 2221714.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 4171222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4171229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6813 + ... + 7399.

It is an arithmetic number, because the mean of its divisors is an integer number (238140).

Almost surely, 2^4171222 is an apocalyptic number.

4171222 is the 1292-nd heptagonal number.

4171222 is a deficient number, since it is larger than the sum of its proper divisors (3449258).

4171222 is a wasteful number, since it uses less digits than its factorization.

4171222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636.

The product of its digits is 224, while the sum is 19.

The square root of 4171222 is about 2042.3569717363. The cubic root of 4171222 is about 160.9735177563.

Adding to 4171222 its reverse (2221714), we get a palindrome (6392936).

The spelling of 4171222 in words is "four million, one hundred seventy-one thousand, two hundred twenty-two".