11211101111212 has 48 divisors (see below), whose sum is σ = 20283938744832. Its totient is φ = 5418668410560.

The previous prime is 11211101111209. The next prime is 11211101111257. The reversal of 11211101111212 is 21211110111211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56746762 + ... + 56943982.

It is an arithmetic number, because the mean of its divisors is an integer number (422582057184).

Almost surely, 2^{11211101111212} is an apocalyptic number.

It is an amenable number.

11211101111212 is a deficient number, since it is larger than the sum of its proper divisors (9072837633620).

11211101111212 is a wasteful number, since it uses less digits than its factorization.

11211101111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200998 (or 200996 counting only the distinct ones).

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

Adding to 11211101111212 its reverse (21211110111211), we get a palindrome (32422211222423).

It can be divided in two parts, 1121110 and 1111212, that added together give a palindrome (2232322).

The spelling of 11211101111212 in words is "eleven trillion, two hundred eleven billion, one hundred one million, one hundred eleven thousand, two hundred twelve".