11012220012221 has 16 divisors (see below), whose sum is σ = 11620074681600. Its totient is φ = 10407204295488.

The previous prime is 11012220012179. The next prime is 11012220012247. The reversal of 11012220012221 is 12221002221011.

It is a cyclic number.

It is not a de Polignac number, because 11012220012221 - 2¹⁴ = 11012219995837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11012220012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012220012121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31822595 + ... + 32166783.

It is an arithmetic number, because the mean of its divisors is an integer number (726254667600).

Almost surely, 2^{11012220012221} is an apocalyptic number.

It is an amenable number.

11012220012221 is a deficient number, since it is larger than the sum of its proper divisors (607854669379).

11012220012221 is a wasteful number, since it uses less digits than its factorization.

11012220012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348308.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11012220012221 its reverse (12221002221011), we get a palindrome (23233222233232).

The spelling of 11012220012221 in words is "eleven trillion, twelve billion, two hundred twenty million, twelve thousand, two hundred twenty-one".