11201220212212 has 24 divisors (see below), whose sum is σ = 20603704355136. Its totient is φ = 5318002354368.

The previous prime is 11201220212173. The next prime is 11201220212213. The reversal of 11201220212212 is 21221202210211.

It is a self number, because there is not a number n which added to its sum of digits gives 11201220212212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201220212213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444339198 + ... + 444364405.

It is an arithmetic number, because the mean of its divisors is an integer number (858487681464).

Almost surely, 2^{11201220212212} is an apocalyptic number.

It is an amenable number.

11201220212212 is a deficient number, since it is larger than the sum of its proper divisors (9402484142924).

11201220212212 is a wasteful number, since it uses less digits than its factorization.

11201220212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888703767 (or 888703765 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11201220212212 its reverse (21221202210211), we get a palindrome (32422422422423).

The spelling of 11201220212212 in words is "eleven trillion, two hundred one billion, two hundred twenty million, two hundred twelve thousand, two hundred twelve".