3221111101 has 6 divisors (see below), whose sum is σ = 3487948890. Its totient is φ = 2973333168.

The previous prime is 3221111083. The next prime is 3221111129. The reversal of 3221111101 is 1011111223.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4519876 + 3216591225 = 2126^2 + 56715^2 .

It is not a de Polignac number, because 3221111101 - 2¹¹ = 3221109053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221111191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9529746 + ... + 9530083.

It is an arithmetic number, because the mean of its divisors is an integer number (581324815).

Almost surely, 2^3221111101 is an apocalyptic number.

It is an amenable number.

3221111101 is a deficient number, since it is larger than the sum of its proper divisors (266837789).

3221111101 is a wasteful number, since it uses less digits than its factorization.

3221111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19059855 (or 19059842 counting only the distinct ones).

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

The square root of 3221111101 is about 56754.8332831663. The cubic root of 3221111101 is about 1476.8460808953.

Adding to 3221111101 its reverse (1011111223), we get a palindrome (4232222324).

The spelling of 3221111101 in words is "three billion, two hundred twenty-one million, one hundred eleven thousand, one hundred one".