22121126126 has 16 divisors (see below), whose sum is σ = 36968382720. Its totient is φ = 9841119480.

The previous prime is 22121126117. The next prime is 22121126129. The reversal of 22121126126 is 62162112122.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22121126095 and 22121126104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121126129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10695836 + ... + 10697903.

It is an arithmetic number, because the mean of its divisors is an integer number (2310523920).

Almost surely, 2^22121126126 is an apocalyptic number.

22121126126 is a deficient number, since it is larger than the sum of its proper divisors (14847256594).

22121126126 is a wasteful number, since it uses less digits than its factorization.

22121126126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21393799.

The product of its digits is 1152, while the sum is 26.

Adding to 22121126126 its reverse (62162112122), we get a palindrome (84283238248).

The spelling of 22121126126 in words is "twenty-two billion, one hundred twenty-one million, one hundred twenty-six thousand, one hundred twenty-six".