12100021210103 has 2 divisors, whose sum is σ = 12100021210104. Its totient is φ = 12100021210102.

The previous prime is 12100021210091. The next prime is 12100021210201. The reversal of 12100021210103 is 30101212000121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12100021210103 - 2¹⁶ = 12100021144567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12100021210903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050010605051 + 6050010605052.

It is an arithmetic number, because the mean of its divisors is an integer number (6050010605052).

Almost surely, 2^{12100021210103} is an apocalyptic number.

12100021210103 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100021210103 is an equidigital number, since it uses as much as digits as its factorization.

12100021210103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12100021210103 its reverse (30101212000121), we get a palindrome (42201233210224).

The spelling of 12100021210103 in words is "twelve trillion, one hundred billion, twenty-one million, two hundred ten thousand, one hundred three".