11123212 has 12 divisors (see below), whose sum is σ = 19537840. Its totient is φ = 5540976.

The previous prime is 11123201. The next prime is 11123221. The reversal of 11123212 is 21232111.

It is a junction number, because it is equal to n+sod(n) for n = 11123192 and 11123201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3912 + ... + 6127.

Almost surely, 2^11123212 is an apocalyptic number.

It is an amenable number.

11123212 is a deficient number, since it is larger than the sum of its proper divisors (8414628).

11123212 is a wasteful number, since it uses less digits than its factorization.

11123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10320 (or 10318 counting only the distinct ones).

The product of its digits is 24, while the sum is 13.

The square root of 11123212 is about 3335.1479727292. The cubic root of 11123212 is about 223.2252946415.

Adding to 11123212 its reverse (21232111), we get a palindrome (32355323).

The spelling of 11123212 in words is "eleven million, one hundred twenty-three thousand, two hundred twelve".