11122212212 has 48 divisors (see below), whose sum is σ = 20562256512. Its totient is φ = 5253705600.

The previous prime is 11122212203. The next prime is 11122212223. The reversal of 11122212212 is 21221222111.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2496587 + ... + 2501037.

It is an arithmetic number, because the mean of its divisors is an integer number (428380344).

Almost surely, 2^11122212212 is an apocalyptic number.

It is an amenable number.

11122212212 is a deficient number, since it is larger than the sum of its proper divisors (9440044300).

11122212212 is a wasteful number, since it uses less digits than its factorization.

11122212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4808 (or 4806 counting only the distinct ones).

The product of its digits is 64, while the sum is 17.

Adding to 11122212212 its reverse (21221222111), we get a palindrome (32343434323).

The spelling of 11122212212 in words is "eleven billion, one hundred twenty-two million, two hundred twelve thousand, two hundred twelve".