220041001 has 4 divisors (see below), whose sum is σ = 224192772. Its totient is φ = 215889232.

The previous prime is 220040993. The next prime is 220041011. The reversal of 220041001 is 100140022.

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 83174400 + 136866601 = 9120^2 + 11699^2 .

It is a cyclic number.

It is not a de Polignac number, because 220041001 - 2³ = 220040993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220041011) 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, 2075806 + ... + 2075911.

It is an arithmetic number, because the mean of its divisors is an integer number (56048193).

Almost surely, 2^220041001 is an apocalyptic number.

It is an amenable number.

220041001 is a deficient number, since it is larger than the sum of its proper divisors (4151771).

220041001 is an equidigital number, since it uses as much as digits as its factorization.

220041001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4151770.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 220041001 is about 14833.7790532285. The cubic root of 220041001 is about 603.7185736650.

Adding to 220041001 its reverse (100140022), we get a palindrome (320181023).

It can be divided in two parts, 22004 and 1001, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 220041001 in words is "two hundred twenty million, forty-one thousand, one".