3220111111 has 4 divisors (see below), whose sum is σ = 3680126992. Its totient is φ = 2760095232.

The previous prime is 3220111109. The next prime is 3220111163. The reversal of 3220111111 is 1111110223.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3220111111 - 2¹ = 3220111109 is a prime.

It is a Duffinian number.

3220111111 is a modest number, since divided by 111111 gives 3220 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 3220111091 and 3220111100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220114111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230007930 + ... + 230007943.

It is an arithmetic number, because the mean of its divisors is an integer number (920031748).

Almost surely, 2^3220111111 is an apocalyptic number.

3220111111 is a deficient number, since it is larger than the sum of its proper divisors (460015881).

3220111111 is an equidigital number, since it uses as much as digits as its factorization.

3220111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460015880.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 3220111111 is about 56746.0228650432. The cubic root of 3220111111 is about 1476.6932367245.

Adding to 3220111111 its reverse (1111110223), we get a palindrome (4331221334).

The spelling of 3220111111 in words is "three billion, two hundred twenty million, one hundred eleven thousand, one hundred eleven".