11021220211222 has 16 divisors (see below), whose sum is σ = 17804699559360. Its totient is φ = 5086377024192.

The previous prime is 11021220211213. The next prime is 11021220211223. The reversal of 11021220211222 is 22211202212011.

It is a self number, because there is not a number n which added to its sum of digits gives 11021220211222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021220211223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13769838 + ... + 14548225.

It is an arithmetic number, because the mean of its divisors is an integer number (1112793722460).

Almost surely, 2^{11021220211222} is an apocalyptic number.

11021220211222 is a deficient number, since it is larger than the sum of its proper divisors (6783479348138).

11021220211222 is a wasteful number, since it uses less digits than its factorization.

11021220211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28333047.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11021220211222 its reverse (22211202212011), we get a palindrome (33232422423233).

The spelling of 11021220211222 in words is "eleven trillion, twenty-one billion, two hundred twenty million, two hundred eleven thousand, two hundred twenty-two".