2220404101 has 4 divisors (see below), whose sum is σ = 2262298572. Its totient is φ = 2178509632.

The previous prime is 2220404089. The next prime is 2220404161. The reversal of 2220404101 is 1014040222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1196468100 + 1023936001 = 34590^2 + 31999^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220404101 - 2¹¹ = 2220402053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220404161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20947156 + ... + 20947261.

It is an arithmetic number, because the mean of its divisors is an integer number (565574643).

Almost surely, 2^2220404101 is an apocalyptic number.

It is an amenable number.

2220404101 is a deficient number, since it is larger than the sum of its proper divisors (41894471).

2220404101 is an equidigital number, since it uses as much as digits as its factorization.

2220404101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41894470.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2220404101 is about 47121.1640454690. The cubic root of 2220404101 is about 1304.5998980921.

Adding to 2220404101 its reverse (1014040222), we get a palindrome (3234444323).

The spelling of 2220404101 in words is "two billion, two hundred twenty million, four hundred four thousand, one hundred one".