12122222102221 has 32 divisors (see below), whose sum is σ = 15218834964480. Its totient is φ = 9380046672000.

The previous prime is 12122222102209. The next prime is 12122222102251. The reversal of 12122222102221 is 12220122222121.

12122222102221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12122222102221 - 2⁷ = 12122222102093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12122222102192 and 12122222102201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122222102201) 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, 33293065 + ... + 33655201.

It is an arithmetic number, because the mean of its divisors is an integer number (475588592640).

Almost surely, 2^{12122222102221} is an apocalyptic number.

12122222102221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12122222102221 is a deficient number, since it is larger than the sum of its proper divisors (3096612862259).

12122222102221 is a wasteful number, since it uses less digits than its factorization.

12122222102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365185.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12122222102221 its reverse (12220122222121), we get a palindrome (24342344324342).

The spelling of 12122222102221 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty-two million, one hundred two thousand, two hundred twenty-one".