2201123205 has 12 divisors (see below), whose sum is σ = 3815280300. Its totient is φ = 1173932352.

The previous prime is 2201123203. The next prime is 2201123209. The reversal of 2201123205 is 5023211022.

It can be written as a sum of positive squares in 2 ways, for example, as 812592036 + 1388531169 = 28506^2 + 37263^2 .

It is not a de Polignac number, because 2201123205 - 2¹ = 2201123203 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201123203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24456880 + ... + 24456969.

It is an arithmetic number, because the mean of its divisors is an integer number (317940025).

Almost surely, 2^2201123205 is an apocalyptic number.

It is an amenable number.

2201123205 is a deficient number, since it is larger than the sum of its proper divisors (1614157095).

2201123205 is a wasteful number, since it uses less digits than its factorization.

2201123205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48913860 (or 48913857 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2201123205 is about 46916.1294759063. The cubic root of 2201123205 is about 1300.8127471966.

Adding to 2201123205 its reverse (5023211022), we get a palindrome (7224334227).

The spelling of 2201123205 in words is "two billion, two hundred one million, one hundred twenty-three thousand, two hundred five".