2201101009 has 4 divisors (see below), whose sum is σ = 2207632804. Its totient is φ = 2194569216.

The previous prime is 2201100977. The next prime is 2201101043. The reversal of 2201101009 is 9001011022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9001011022 = 2 ⋅4500505511.

It can be written as a sum of positive squares in 2 ways, for example, as 1178892225 + 1022208784 = 34335^2 + 31972^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201101009 - 2⁵ = 2201100977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201100983 and 2201101001.

It is not an unprimeable number, because it can be changed into a prime (2201101079) 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, 3265392 + ... + 3266065.

It is an arithmetic number, because the mean of its divisors is an integer number (551908201).

Almost surely, 2^2201101009 is an apocalyptic number.

It is an amenable number.

2201101009 is a deficient number, since it is larger than the sum of its proper divisors (6531795).

2201101009 is an equidigital number, since it uses as much as digits as its factorization.

2201101009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6531794.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 2201101009 is about 46915.8929255322. The cubic root of 2201101009 is about 1300.8083747416.

The spelling of 2201101009 in words is "two billion, two hundred one million, one hundred one thousand, nine".