11142252205 has 16 divisors (see below), whose sum is σ = 15452501760. Its totient is φ = 7554552192.

The previous prime is 11142252203. The next prime is 11142252223. The reversal of 11142252205 is 50225224111.

It is a cyclic number.

It is not a de Polignac number, because 11142252205 - 2¹ = 11142252203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11142252205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142252203) 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, 1785369 + ... + 1791598.

It is an arithmetic number, because the mean of its divisors is an integer number (965781360).

Almost surely, 2^11142252205 is an apocalyptic number.

It is an amenable number.

11142252205 is a deficient number, since it is larger than the sum of its proper divisors (4310249555).

11142252205 is an equidigital number, since it uses as much as digits as its factorization.

11142252205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3577068.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 11142252205 its reverse (50225224111), we get a palindrome (61367476316).

The spelling of 11142252205 in words is "eleven billion, one hundred forty-two million, two hundred fifty-two thousand, two hundred five".