2201100001 has 4 divisors (see below), whose sum is σ = 2201702292. Its totient is φ = 2200497712.

The previous prime is 2201099981. The next prime is 2201100061. The reversal of 2201100001 is 1000011022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1000011022 = 2 ⋅500005511.

It can be written as a sum of positive squares in 2 ways, for example, as 1097199376 + 1103900625 = 33124^2 + 33225^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201100001 - 2¹⁵ = 2201067233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201100061) 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, 295630 + ... + 302983.

It is an arithmetic number, because the mean of its divisors is an integer number (550425573).

Almost surely, 2^2201100001 is an apocalyptic number.

It is an amenable number.

2201100001 is a deficient number, since it is larger than the sum of its proper divisors (602291).

2201100001 is an equidigital number, since it uses as much as digits as its factorization.

2201100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602290.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 2201100001 is about 46915.8821829026. The cubic root of 2201100001 is about 1300.8081761720.

Adding to 2201100001 its reverse (1000011022), we get a palindrome (3201111023).

The spelling of 2201100001 in words is "two billion, two hundred one million, one hundred thousand, one".