11122212212112 has 40 divisors (see below), whose sum is σ = 28732502507104. Its totient is φ = 3707388463104.

The previous prime is 11122212212099. The next prime is 11122212212129. The reversal of 11122212212112 is 21121221222111.

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 7 ways as a sum of consecutive naturals, for example, 19356183 + ... + 19922505.

Almost surely, 2^{11122212212112} is an apocalyptic number.

11122212212112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11122212212112 is an abundant number, since it is smaller than the sum of its proper divisors (17610290294992).

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

11122212212112 is a wasteful number, since it uses less digits than its factorization.

11122212212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975487 (or 975481 counting only the distinct ones).

The product of its digits is 128, while the sum is 21.

Adding to 11122212212112 its reverse (21121221222111), we get a palindrome (32243433434223).

Subtracting 11122212212112 from its reverse (21121221222111), we obtain a palindrome (9999009009999).

The spelling of 11122212212112 in words is "eleven trillion, one hundred twenty-two billion, two hundred twelve million, two hundred twelve thousand, one hundred twelve".