11120222211221 has 32 divisors (see below), whose sum is σ = 12022792104960. Its totient is φ = 10258988185600.

The previous prime is 11120222211179. The next prime is 11120222211223. The reversal of 11120222211221 is 12211222202111.

It is a cyclic number.

It is not a de Polignac number, because 11120222211221 - 2³⁰ = 11119148469397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11120222211193 and 11120222211202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120222211223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41317316 + ... + 41585586.

It is an arithmetic number, because the mean of its divisors is an integer number (375712253280).

Almost surely, 2^{11120222211221} is an apocalyptic number.

It is an amenable number.

11120222211221 is a deficient number, since it is larger than the sum of its proper divisors (902569893739).

11120222211221 is a wasteful number, since it uses less digits than its factorization.

11120222211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268837.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 11120222211221 its reverse (12211222202111), we get a palindrome (23331444413332).

The spelling of 11120222211221 in words is "eleven trillion, one hundred twenty billion, two hundred twenty-two million, two hundred eleven thousand, two hundred twenty-one".