4161222 has 24 divisors (see below), whose sum is σ = 9710064. Its totient is φ = 1280304.

The previous prime is 4161221. The next prime is 4161233. The reversal of 4161222 is 2221614.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 4161195 and 4161204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4161221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8658 + ... + 9125.

It is an arithmetic number, because the mean of its divisors is an integer number (404586).

Almost surely, 2^4161222 is an apocalyptic number.

4161222 is an abundant number, since it is smaller than the sum of its proper divisors (5548842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4161222 is a wasteful number, since it uses less digits than its factorization.

4161222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17804 (or 17801 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 4161222 is about 2039.9073508373. The cubic root of 4161222 is about 160.8447766444.

Adding to 4161222 its reverse (2221614), we get a palindrome (6382836).

The spelling of 4161222 in words is "four million, one hundred sixty-one thousand, two hundred twenty-two".