11222122222112 has 24 divisors (see below), whose sum is σ = 22093700383692. Its totient is φ = 5611023712000.

The previous prime is 11222122222093. The next prime is 11222122222151. The reversal of 11222122222112 is 21122222122211.

It can be written as a sum of positive squares in 2 ways, for example, as 10945484092816 + 276638129296 = 3308396^2 + 525964^2 .

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

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, 4068362 + ... + 6244662.

Almost surely, 2^{11222122222112} is an apocalyptic number.

It is an amenable number.

11222122222112 is a deficient number, since it is larger than the sum of its proper divisors (10871578161580).

11222122222112 is a wasteful number, since it uses less digits than its factorization.

11222122222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337452 (or 2337444 counting only the distinct ones).

The product of its digits is 512, while the sum is 23.

Adding to 11222122222112 its reverse (21122222122211), we get a palindrome (32344344344323).

Subtracting 11222122222112 from its reverse (21122222122211), we obtain a palindrome (9900099900099).

The spelling of 11222122222112 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred twelve".