220404100101001 has 8 divisors (see below), whose sum is σ = 225862543506600. Its totient is φ = 214949596392960.

The previous prime is 220404100100983. The next prime is 220404100101077. The reversal of 220404100101001 is 100101001404022.

It is a happy number.

220404100101001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 63163535107401 + 157240564993600 = 7947549^2 + 12539560^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220404100101001 - 2¹¹ = 220404100098953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220404100101901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 984811116 + ... + 985034893.

It is an arithmetic number, because the mean of its divisors is an integer number (28232817938325).

Almost surely, 2^{220404100101001} is an apocalyptic number.

It is an amenable number.

220404100101001 is a deficient number, since it is larger than the sum of its proper divisors (5458443405599).

220404100101001 is a wasteful number, since it uses less digits than its factorization.

220404100101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969848779.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220404100101001 its reverse (100101001404022), we get a palindrome (320505101505023).

The spelling of 220404100101001 in words is "two hundred twenty trillion, four hundred four billion, one hundred million, one hundred one thousand, one".