2222111221101 has 12 divisors (see below), whose sum is σ = 3288001969980. Its totient is φ = 1445275590720.

The previous prime is 2222111221079. The next prime is 2222111221129. The reversal of 2222111221101 is 1011221112222.

2222111221101 is a `hidden beast` number, since 222 + 211 + 1 + 221 + 10 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 92934132201 + 2129177088900 = 304851^2 + 1459170^2 .

It is not a de Polignac number, because 2222111221101 - 2¹⁴ = 2222111204717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222111221181) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3010990446 + ... + 3010991183.

It is an arithmetic number, because the mean of its divisors is an integer number (274000164165).

Almost surely, 2^{2222111221101} is an apocalyptic number.

It is an amenable number.

2222111221101 is a deficient number, since it is larger than the sum of its proper divisors (1065890748879).

2222111221101 is a wasteful number, since it uses less digits than its factorization.

2222111221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6021981676 (or 6021981673 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2222111221101 its reverse (1011221112222), we get a palindrome (3233332333323).

The spelling of 2222111221101 in words is "two trillion, two hundred twenty-two billion, one hundred eleven million, two hundred twenty-one thousand, one hundred one".