12010212210121 has 2 divisors, whose sum is σ = 12010212210122. Its totient is φ = 12010212210120.

The previous prime is 12010212210083. The next prime is 12010212210193. The reversal of 12010212210121 is 12101221201021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9875211975225 + 2135000234896 = 3142485^2 + 1461164^2 .

It is an emirp because it is prime and its reverse (12101221201021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12010212210121 - 2¹³ = 12010212201929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12010212210095 and 12010212210104.

It is not a weakly prime, because it can be changed into another prime (12010212210721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005106105060 + 6005106105061.

It is an arithmetic number, because the mean of its divisors is an integer number (6005106105061).

Almost surely, 2^{12010212210121} is an apocalyptic number.

It is an amenable number.

12010212210121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12010212210121 is an equidigital number, since it uses as much as digits as its factorization.

12010212210121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12010212210121 its reverse (12101221201021), we get a palindrome (24111433411142).

The spelling of 12010212210121 in words is "twelve trillion, ten billion, two hundred twelve million, two hundred ten thousand, one hundred twenty-one".