12000002022121 has 2 divisors, whose sum is σ = 12000002022122. Its totient is φ = 12000002022120.

The previous prime is 12000002022097. The next prime is 12000002022137. The reversal of 12000002022121 is 12122020000021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6176641531225 + 5823360490896 = 2485285^2 + 2413164^2 .

It is a cyclic number.

It is not a de Polignac number, because 12000002022121 - 2³¹ = 11997854538473 is a prime.

It is not a weakly prime, because it can be changed into another prime (12000002022821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000001011060 + 6000001011061.

It is an arithmetic number, because the mean of its divisors is an integer number (6000001011061).

Almost surely, 2^{12000002022121} is an apocalyptic number.

It is an amenable number.

12000002022121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000002022121 is an equidigital number, since it uses as much as digits as its factorization.

12000002022121 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 13.

Adding to 12000002022121 its reverse (12122020000021), we get a palindrome (24122022022142).

The spelling of 12000002022121 in words is "twelve trillion, two million, twenty-two thousand, one hundred twenty-one".