11001252205 has 16 divisors (see below), whose sum is σ = 13390984944. Its totient is φ = 8674836480.

The previous prime is 11001252173. The next prime is 11001252209. The reversal of 11001252205 is 50225210011.

It can be written as a sum of positive squares in 8 ways, for example, as 368755209 + 10632496996 = 19203^2 + 103114^2 .

It is not a de Polignac number, because 11001252205 - 2⁵ = 11001252173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001252209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610525 + ... + 628285.

It is an arithmetic number, because the mean of its divisors is an integer number (836936559).

Almost surely, 2^11001252205 is an apocalyptic number.

It is an amenable number.

11001252205 is a deficient number, since it is larger than the sum of its proper divisors (2389732739).

11001252205 is a wasteful number, since it uses less digits than its factorization.

11001252205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19536.

The product of its (nonzero) digits is 200, while the sum is 19.

Adding to 11001252205 its reverse (50225210011), we get a palindrome (61226462216).

The spelling of 11001252205 in words is "eleven billion, one million, two hundred fifty-two thousand, two hundred five".