11081212 has 24 divisors (see below), whose sum is σ = 20774880. Its totient is φ = 5153280.

The previous prime is 11081209. The next prime is 11081227. The reversal of 11081212 is 21218011.

11081212 is a modest number, since divided by 1212 gives 1108 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5137 + ... + 6967.

It is an arithmetic number, because the mean of its divisors is an integer number (865620).

Almost surely, 2^11081212 is an apocalyptic number.

It is an amenable number.

11081212 is a deficient number, since it is larger than the sum of its proper divisors (9693668).

11081212 is a wasteful number, since it uses less digits than its factorization.

11081212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941 (or 1939 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 11081212 is about 3328.8454454961. The cubic root of 11081212 is about 222.9439823904.

Adding to 11081212 its reverse (21218011), we get a palindrome (32299223).

The spelling of 11081212 in words is "eleven million, eighty-one thousand, two hundred twelve".