22101222201121 has 4 divisors (see below), whose sum is σ = 25258539658432. Its totient is φ = 18943904743812.

The previous prime is 22101222201061. The next prime is 22101222201133. The reversal of 22101222201121 is 12110222210122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22101222201121 - 2³⁹ = 21551466387233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22101222201151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1578658728645 + ... + 1578658728658.

It is an arithmetic number, because the mean of its divisors is an integer number (6314634914608).

Almost surely, 2^{22101222201121} is an apocalyptic number.

It is an amenable number.

22101222201121 is a deficient number, since it is larger than the sum of its proper divisors (3157317457311).

22101222201121 is an equidigital number, since it uses as much as digits as its factorization.

22101222201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157317457310.

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

Adding to 22101222201121 its reverse (12110222210122), we get a palindrome (34211444411243).

Subtracting from 22101222201121 its reverse (12110222210122), we obtain a palindrome (9990999990999).

The spelling of 22101222201121 in words is "twenty-two trillion, one hundred one billion, two hundred twenty-two million, two hundred one thousand, one hundred twenty-one".