12222000212121 has 32 divisors (see below), whose sum is σ = 21782456524800. Its totient is φ = 6616421165520.

The previous prime is 12222000212119. The next prime is 12222000212143. The reversal of 12222000212121 is 12121200022221.

It is a happy number.

It is not a de Polignac number, because 12222000212121 - 2¹ = 12222000212119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12222000212094 and 12222000212103.

It is not an unprimeable number, because it can be changed into a prime (12222000212101) 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, 1701750825 + ... + 1701758006.

It is an arithmetic number, because the mean of its divisors is an integer number (680701766400).

Almost surely, 2^{12222000212121} is an apocalyptic number.

It is an amenable number.

12222000212121 is a deficient number, since it is larger than the sum of its proper divisors (9560456312679).

12222000212121 is a wasteful number, since it uses less digits than its factorization.

12222000212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403508866 (or 3403508860 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12222000212121 its reverse (12121200022221), we get a palindrome (24343200234342).

The spelling of 12222000212121 in words is "twelve trillion, two hundred twenty-two billion, two hundred twelve thousand, one hundred twenty-one".