11022121121212 has 12 divisors (see below), whose sum is σ = 20127351612816. Its totient is φ = 5271449231840.

The previous prime is 11022121121153. The next prime is 11022121121321. The reversal of 11022121121212 is 21212112122011.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11022121121212.

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, 59902832089 + ... + 59902832272.

It is an arithmetic number, because the mean of its divisors is an integer number (1677279301068).

Almost surely, 2^{11022121121212} is an apocalyptic number.

It is an amenable number.

11022121121212 is a deficient number, since it is larger than the sum of its proper divisors (9105230491604).

11022121121212 is a wasteful number, since it uses less digits than its factorization.

11022121121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119805664388 (or 119805664386 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11022121121212 its reverse (21212112122011), we get a palindrome (32234233243223).

The spelling of 11022121121212 in words is "eleven trillion, twenty-two billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred twelve".