11321220012212 has 48 divisors (see below), whose sum is σ = 22049218759680. Its totient is φ = 5042831433600.

The previous prime is 11321220012199. The next prime is 11321220012253. The reversal of 11321220012212 is 21221002212311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7118228 + ... + 8562219.

It is an arithmetic number, because the mean of its divisors is an integer number (459358724160).

Almost surely, 2^{11321220012212} is an apocalyptic number.

It is an amenable number.

11321220012212 is a deficient number, since it is larger than the sum of its proper divisors (10727998747468).

11321220012212 is a wasteful number, since it uses less digits than its factorization.

11321220012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15680792 (or 15680790 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 11321220012212 its reverse (21221002212311), we get a palindrome (32542222224523).

The spelling of 11321220012212 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty million, twelve thousand, two hundred twelve".