22120110121 has 4 divisors (see below), whose sum is σ = 22659625044. Its totient is φ = 21580595200.

The previous prime is 22120110119. The next prime is 22120110149. The reversal of 22120110121 is 12101102122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 551075625 + 21569034496 = 23475^2 + 146864^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120110121 - 2¹ = 22120110119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22120110101) 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, 269757400 + ... + 269757481.

It is an arithmetic number, because the mean of its divisors is an integer number (5664906261).

Almost surely, 2^22120110121 is an apocalyptic number.

It is an amenable number.

22120110121 is a deficient number, since it is larger than the sum of its proper divisors (539514923).

22120110121 is an equidigital number, since it uses as much as digits as its factorization.

22120110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539514922.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22120110121 its reverse (12101102122), we get a palindrome (34221212243).

The spelling of 22120110121 in words is "twenty-two billion, one hundred twenty million, one hundred ten thousand, one hundred twenty-one".