11202020511172 has 24 divisors (see below), whose sum is σ = 19625074005600. Its totient is φ = 5594857093056.

The previous prime is 11202020511169. The next prime is 11202020511197. The reversal of 11202020511172 is 27111502020211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92872479 + ... + 92993017.

It is an arithmetic number, because the mean of its divisors is an integer number (817711416900).

Almost surely, 2^{11202020511172} is an apocalyptic number.

It is an amenable number.

11202020511172 is a deficient number, since it is larger than the sum of its proper divisors (8423053494428).

11202020511172 is a wasteful number, since it uses less digits than its factorization.

11202020511172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145875 (or 145873 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 25.

Adding to 11202020511172 its reverse (27111502020211), we get a palindrome (38313522531383).

The spelling of 11202020511172 in words is "eleven trillion, two hundred two billion, twenty million, five hundred eleven thousand, one hundred seventy-two".