11111221011022 has 8 divisors (see below), whose sum is σ = 18181998018072. Its totient is φ = 5050555005000.

The previous prime is 11111221011013. The next prime is 11111221011041. The reversal of 11111221011022 is 22011012211111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11111221010987 and 11111221011005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252527750229 + ... + 252527750272.

It is an arithmetic number, because the mean of its divisors is an integer number (2272749752259).

Almost surely, 2^{11111221011022} is an apocalyptic number.

11111221011022 is a deficient number, since it is larger than the sum of its proper divisors (7070777007050).

11111221011022 is a wasteful number, since it uses less digits than its factorization.

11111221011022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505055500514.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11111221011022 its reverse (22011012211111), we get a palindrome (33122233222133).

The spelling of 11111221011022 in words is "eleven trillion, one hundred eleven billion, two hundred twenty-one million, eleven thousand, twenty-two".