12122121022 has 16 divisors (see below), whose sum is σ = 20476076544. Its totient is φ = 5332311000.

The previous prime is 12122121007. The next prime is 12122121071. The reversal of 12122121022 is 22012122121.

It is a happy number.

12122121022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12122120987 and 12122121005.

It is a congruent number.

It is an unprimeable number.

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, 8886504 + ... + 8887867.

It is an arithmetic number, because the mean of its divisors is an integer number (1279754784).

Almost surely, 2^12122121022 is an apocalyptic number.

12122121022 is a deficient number, since it is larger than the sum of its proper divisors (8353955522).

12122121022 is a wasteful number, since it uses less digits than its factorization.

12122121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17774415.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12122121022 its reverse (22012122121), we get a palindrome (34134243143).

The spelling of 12122121022 in words is "twelve billion, one hundred twenty-two million, one hundred twenty-one thousand, twenty-two".