220044101 has 4 divisors (see below), whose sum is σ = 220073772. Its totient is φ = 220014432.

The previous prime is 220044079. The next prime is 220044127. The reversal of 220044101 is 101440022.

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: 101440022 = 2 ⋅50720011.

It can be written as a sum of positive squares in 2 ways, for example, as 128822500 + 91221601 = 11350^2 + 9551^2 .

It is a cyclic number.

It is not a de Polignac number, because 220044101 - 2⁶ = 220044037 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 (220044191) 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, 7145 + ... + 22161.

It is an arithmetic number, because the mean of its divisors is an integer number (55018443).

Almost surely, 2^220044101 is an apocalyptic number.

It is an amenable number.

220044101 is a deficient number, since it is larger than the sum of its proper divisors (29671).

220044101 is a wasteful number, since it uses less digits than its factorization.

220044101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29670.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 220044101 is about 14833.8835441027. The cubic root of 220044101 is about 603.7214087711.

Adding to 220044101 its reverse (101440022), we get a palindrome (321484123).

The spelling of 220044101 in words is "two hundred twenty million, forty-four thousand, one hundred one".