22221112221121 has 8 divisors (see below), whose sum is σ = 24241285857600. Its totient is φ = 20200950672240.

The previous prime is 22221112221089. The next prime is 22221112221167. The reversal of 22221112221121 is 12112221112222.

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

It is a cyclic number.

It is not a de Polignac number, because 22221112221121 - 2⁵ = 22221112221089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22221112221092 and 22221112221101.

It is not an unprimeable number, because it can be changed into a prime (22221112221421) 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 7 ways as a sum of consecutive naturals, for example, 1061860 + ... + 6750538.

It is an arithmetic number, because the mean of its divisors is an integer number (3030160732200).

Almost surely, 2^{22221112221121} is an apocalyptic number.

It is an amenable number.

22221112221121 is a deficient number, since it is larger than the sum of its proper divisors (2020173636479).

22221112221121 is a wasteful number, since it uses less digits than its factorization.

22221112221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6043799.

The product of its digits is 256, while the sum is 22.

Adding to 22221112221121 its reverse (12112221112222), we get a palindrome (34333333333343).

The spelling of 22221112221121 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred twelve million, two hundred twenty-one thousand, one hundred twenty-one".