11221121112112 has 20 divisors (see below), whose sum is σ = 21742110685696. Its totient is φ = 5610253838400.

The previous prime is 11221121112109. The next prime is 11221121112139. The reversal of 11221121112112 is 21121112112211.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 11221121112112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18867888 + ... + 19453519.

Almost surely, 2^{11221121112112} is an apocalyptic number.

It is an amenable number.

11221121112112 is a deficient number, since it is larger than the sum of its proper divisors (10520989573584).

11221121112112 is a wasteful number, since it uses less digits than its factorization.

11221121112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38339716 (or 38339710 counting only the distinct ones).

The product of its digits is 32, while the sum is 19.

Adding to 11221121112112 its reverse (21121112112211), we get a palindrome (32342233224323).

The spelling of 11221121112112 in words is "eleven trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred twelve thousand, one hundred twelve".