11201111111212 has 48 divisors (see below), whose sum is σ = 22890925411200. Its totient is φ = 4741691650560.

The previous prime is 11201111111207. The next prime is 11201111111237. The reversal of 11201111111212 is 21211111110211.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113496933 + ... + 113595580.

It is an arithmetic number, because the mean of its divisors is an integer number (476894279400).

Almost surely, 2^{11201111111212} is an apocalyptic number.

It is an amenable number.

11201111111212 is an abundant number, since it is smaller than the sum of its proper divisors (11689814299988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11201111111212 is a wasteful number, since it uses less digits than its factorization.

11201111111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227092606 (or 227092604 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 11201111111212 its reverse (21211111110211), we get a palindrome (32412222221423).

The spelling of 11201111111212 in words is "eleven trillion, two hundred one billion, one hundred eleven million, one hundred eleven thousand, two hundred twelve".