22101100221121 has 4 divisors (see below), whose sum is σ = 22205844772144. Its totient is φ = 21996355670100.

The previous prime is 22101100221097. The next prime is 22101100221149. The reversal of 22101100221121 is 12112200110122.

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 22101100221121 - 2⁵ = 22101100221089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22101100221095 and 22101100221104.

It is not an unprimeable number, because it can be changed into a prime (22101100221721) 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, 52372275195 + ... + 52372275616.

It is an arithmetic number, because the mean of its divisors is an integer number (5551461193036).

Almost surely, 2^{22101100221121} is an apocalyptic number.

It is an amenable number.

22101100221121 is a deficient number, since it is larger than the sum of its proper divisors (104744551023).

22101100221121 is a wasteful number, since it uses less digits than its factorization.

22101100221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104744551022.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22101100221121 its reverse (12112200110122), we get a palindrome (34213300331243).

The spelling of 22101100221121 in words is "twenty-two trillion, one hundred one billion, one hundred million, two hundred twenty-one thousand, one hundred twenty-one".