11123312212 has 12 divisors (see below), whose sum is σ = 19467224896. Its totient is φ = 5561247960.

The previous prime is 11123312173. The next prime is 11123312227. The reversal of 11123312212 is 21221332111.

It is a self number, because there is not a number n which added to its sum of digits gives 11123312212.

It is a congruent number.

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, 35964 + ... + 153427.

Almost surely, 2^11123312212 is an apocalyptic number.

It is an amenable number.

11123312212 is a deficient number, since it is larger than the sum of its proper divisors (8343912684).

11123312212 is a wasteful number, since it uses less digits than its factorization.

11123312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204078 (or 204076 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

Adding to 11123312212 its reverse (21221332111), we get a palindrome (32344644323).

The spelling of 11123312212 in words is "eleven billion, one hundred twenty-three million, three hundred twelve thousand, two hundred twelve".