11121212 has 6 divisors (see below), whose sum is σ = 19462128. Its totient is φ = 5560604.

The previous prime is 11121197. The next prime is 11121217. The reversal of 11121212 is 21212111.

11121212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

11121212 is a modest number, since divided by 1212 gives 1112 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 11121193 and 11121202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1390148 + ... + 1390155.

It is an arithmetic number, because the mean of its divisors is an integer number (3243688).

Almost surely, 2^11121212 is an apocalyptic number.

It is an amenable number.

11121212 is a deficient number, since it is larger than the sum of its proper divisors (8340916).

11121212 is a wasteful number, since it uses less digits than its factorization.

11121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780307 (or 2780305 counting only the distinct ones).

The product of its digits is 8, while the sum is 11.

The square root of 11121212 is about 3334.8481224787. The cubic root of 11121212 is about 223.2119148926.

Adding to 11121212 its reverse (21212111), we get a palindrome (32333323).

It can be divided in two parts, 111 and 21212, that multiplied together give a palindrome (2354532).

The spelling of 11121212 in words is "eleven million, one hundred twenty-one thousand, two hundred twelve".