11201111101212 has 48 divisors (see below), whose sum is σ = 26284316927232. Its totient is φ = 3712524088320.

The previous prime is 11201111101183. The next prime is 11201111101259. The reversal of 11201111101212 is 21210111110211.

It is a junction number, because it is equal to n+sod(n) for n = 11201111101191 and 11201111101200.

It is a congruent number.

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, 3501537 + ... + 5887527.

It is an arithmetic number, because the mean of its divisors is an integer number (547589935984).

Almost surely, 2^{11201111101212} is an apocalyptic number.

11201111101212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11201111101212 is an abundant number, since it is smaller than the sum of its proper divisors (15083205826020).

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

11201111101212 is a wasteful number, since it uses less digits than its factorization.

11201111101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388218 (or 2388216 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11201111101212 its reverse (21210111110211), we get a palindrome (32411222211423).

The spelling of 11201111101212 in words is "eleven trillion, two hundred one billion, one hundred eleven million, one hundred one thousand, two hundred twelve".