3220111001 has 4 divisors (see below), whose sum is σ = 3220226100. Its totient is φ = 3219995904.

The previous prime is 3220110989. The next prime is 3220111007. The reversal of 3220111001 is 1001110223.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1001110223 = 61 ⋅16411643.

It can be written as a sum of positive squares in 2 ways, for example, as 2347499401 + 872611600 = 48451^2 + 29540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3220111001 is a prime.

It is a super-2 number, since 2×3220111001² = 20738229717522444002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3220111007) 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, 14405 + ... + 81533.

It is an arithmetic number, because the mean of its divisors is an integer number (805056525).

Almost surely, 2^3220111001 is an apocalyptic number.

It is an amenable number.

3220111001 is a deficient number, since it is larger than the sum of its proper divisors (115099).

3220111001 is an equidigital number, since it uses as much as digits as its factorization.

3220111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115098.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 3220111001 is about 56746.0218958122. The cubic root of 3220111001 is about 1476.6932199098.

Adding to 3220111001 its reverse (1001110223), we get a palindrome (4221221224).

The spelling of 3220111001 in words is "three billion, two hundred twenty million, one hundred eleven thousand, one".