22103013121 has 32 divisors (see below), whose sum is σ = 26780624640. Its totient is φ = 17845401600.

The previous prime is 22103013109. The next prime is 22103013151. The reversal of 22103013121 is 12131030122.

It is a cyclic number.

It is not a de Polignac number, because 22103013121 - 2²⁷ = 21968795393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22103013095 and 22103013104.

It is not an unprimeable number, because it can be changed into a prime (22103013151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1383145 + ... + 1399033.

It is an arithmetic number, because the mean of its divisors is an integer number (836894520).

Almost surely, 2^22103013121 is an apocalyptic number.

It is an amenable number.

22103013121 is a deficient number, since it is larger than the sum of its proper divisors (4677611519).

22103013121 is a wasteful number, since it uses less digits than its factorization.

22103013121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16105.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 22103013121 its reverse (12131030122), we get a palindrome (34234043243).

The spelling of 22103013121 in words is "twenty-two billion, one hundred three million, thirteen thousand, one hundred twenty-one".