11231212 has 12 divisors (see below), whose sum is σ = 20134296. Its totient is φ = 5478560.

The previous prime is 11231201. The next prime is 11231219. The reversal of 11231212 is 21213211.

It is a super-2 number, since 2×11231212² = 252280245977888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11231192 and 11231201.

It is not an unprimeable number, because it can be changed into a prime (11231219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34078 + ... + 34405.

It is an arithmetic number, because the mean of its divisors is an integer number (1677858).

Almost surely, 2^11231212 is an apocalyptic number.

It is an amenable number.

11231212 is a deficient number, since it is larger than the sum of its proper divisors (8903084).

11231212 is a wasteful number, since it uses less digits than its factorization.

11231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68528 (or 68526 counting only the distinct ones).

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

The square root of 11231212 is about 3351.3000462507. The cubic root of 11231212 is about 223.9454320736.

Adding to 11231212 its reverse (21213211), we get a palindrome (32444423).

The spelling of 11231212 in words is "eleven million, two hundred thirty-one thousand, two hundred twelve".