12100220051 has 2 divisors, whose sum is σ = 12100220052. Its totient is φ = 12100220050.

The previous prime is 12100220039. The next prime is 12100220057. The reversal of 12100220051 is 15002200121.

12100220051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (15002200121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12100220051 is a prime.

It is not a weakly prime, because it can be changed into another prime (12100220057) 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, 6050110025 + 6050110026.

It is an arithmetic number, because the mean of its divisors is an integer number (6050110026).

Almost surely, 2^12100220051 is an apocalyptic number.

12100220051 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100220051 is an equidigital number, since it uses as much as digits as its factorization.

12100220051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 12100220051 its reverse (15002200121), we get a palindrome (27102420172).

The spelling of 12100220051 in words is "twelve billion, one hundred million, two hundred twenty thousand, fifty-one".