12102200002121 has 2 divisors, whose sum is σ = 12102200002122. Its totient is φ = 12102200002120.

The previous prime is 12102200002069. The next prime is 12102200002157. The reversal of 12102200002121 is 12120000220121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9313513758025 + 2788686244096 = 3051805^2 + 1669936^2 .

It is an emirp because it is prime and its reverse (12120000220121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12102200002121 - 2²² = 12102195807817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12102200002096 and 12102200002105.

It is not a weakly prime, because it can be changed into another prime (12102200032121) 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 as a sum of consecutive naturals, namely, 6051100001060 + 6051100001061.

It is an arithmetic number, because the mean of its divisors is an integer number (6051100001061).

Almost surely, 2^{12102200002121} is an apocalyptic number.

It is an amenable number.

12102200002121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102200002121 is an equidigital number, since it uses as much as digits as its factorization.

12102200002121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12102200002121 its reverse (12120000220121), we get a palindrome (24222200222242).

The spelling of 12102200002121 in words is "twelve trillion, one hundred two billion, two hundred million, two thousand, one hundred twenty-one".