12100011202121 has 2 divisors, whose sum is σ = 12100011202122. Its totient is φ = 12100011202120.

The previous prime is 12100011202099. The next prime is 12100011202141. The reversal of 12100011202121 is 12120211000121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6771762312121 + 5328248890000 = 2602261^2 + 2308300^2 .

It is a cyclic number.

It is not a de Polignac number, because 12100011202121 - 2⁴² = 7701964691017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12100011202096 and 12100011202105.

It is not a weakly prime, because it can be changed into another prime (12100011202141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050005601060 + 6050005601061.

It is an arithmetic number, because the mean of its divisors is an integer number (6050005601061).

Almost surely, 2^{12100011202121} is an apocalyptic number.

It is an amenable number.

12100011202121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100011202121 is an equidigital number, since it uses as much as digits as its factorization.

12100011202121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12100011202121 its reverse (12120211000121), we get a palindrome (24220222202242).

The spelling of 12100011202121 in words is "twelve trillion, one hundred billion, eleven million, two hundred two thousand, one hundred twenty-one".