3220111224 has 96 divisors (see below), whose sum is σ = 9556410240. Its totient is φ = 971438400.

The previous prime is 3220111199. The next prime is 3220111229. The reversal of 3220111224 is 4221110223.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 3220111197 and 3220111206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220111229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170829 + ... + 188739.

It is an arithmetic number, because the mean of its divisors is an integer number (99545940).

Almost surely, 2^3220111224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3220111224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4778205120).

3220111224 is an abundant number, since it is smaller than the sum of its proper divisors (6336299016).

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

3220111224 is a wasteful number, since it uses less digits than its factorization.

3220111224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18161 (or 18154 counting only the distinct ones).

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

The square root of 3220111224 is about 56746.0238607076. The cubic root of 3220111224 is about 1476.6932539979.

Adding to 3220111224 its reverse (4221110223), we get a palindrome (7441221447).

The spelling of 3220111224 in words is "three billion, two hundred twenty million, one hundred eleven thousand, two hundred twenty-four".