22103344121 has 4 divisors (see below), whose sum is σ = 23403540852. Its totient is φ = 20803147392.

The previous prime is 22103344117. The next prime is 22103344127. The reversal of 22103344121 is 12144330122.

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 6669008896 + 15434335225 = 81664^2 + 124235^2 .

It is a cyclic number.

It is not a de Polignac number, because 22103344121 - 2² = 22103344117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22103344127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650098340 + ... + 650098373.

It is an arithmetic number, because the mean of its divisors is an integer number (5850885213).

Almost surely, 2^22103344121 is an apocalyptic number.

It is an amenable number.

22103344121 is a deficient number, since it is larger than the sum of its proper divisors (1300196731).

22103344121 is a wasteful number, since it uses less digits than its factorization.

22103344121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300196730.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 22103344121 its reverse (12144330122), we get a palindrome (34247674243).

The spelling of 22103344121 in words is "twenty-two billion, one hundred three million, three hundred forty-four thousand, one hundred twenty-one".