11022221102221 has 16 divisors (see below), whose sum is σ = 12682283054976. Its totient is φ = 9383735771136.

The previous prime is 11022221102219. The next prime is 11022221102227. The reversal of 11022221102221 is 12220112222011.

It is a cyclic number.

It is not a de Polignac number, because 11022221102221 - 2¹ = 11022221102219 is a prime.

It is a super-2 number, since 2×11022221102221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022221102227) 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, 8204076 + ... + 9452581.

It is an arithmetic number, because the mean of its divisors is an integer number (792642690936).

Almost surely, 2^{11022221102221} is an apocalyptic number.

It is an amenable number.

11022221102221 is a deficient number, since it is larger than the sum of its proper divisors (1660061952755).

11022221102221 is a wasteful number, since it uses less digits than its factorization.

11022221102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17657268.

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

Adding to 11022221102221 its reverse (12220112222011), we get a palindrome (23242333324232).

The spelling of 11022221102221 in words is "eleven trillion, twenty-two billion, two hundred twenty-one million, one hundred two thousand, two hundred twenty-one".