100012181207 has 2 divisors, whose sum is σ = 100012181208. Its totient is φ = 100012181206.

The previous prime is 100012181189. The next prime is 100012181221. The reversal of 100012181207 is 702181210001.

It is a strong prime.

It is an emirp because it is prime and its reverse (702181210001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100012181207 - 2⁸ = 100012180951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100012181267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50006090603 + 50006090604.

It is an arithmetic number, because the mean of its divisors is an integer number (50006090604).

Almost surely, 2^100012181207 is an apocalyptic number.

100012181207 is a deficient number, since it is larger than the sum of its proper divisors (1).

100012181207 is an equidigital number, since it uses as much as digits as its factorization.

100012181207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 23.

Adding to 100012181207 its reverse (702181210001), we get a palindrome (802193391208).

The spelling of 100012181207 in words is "one hundred billion, twelve million, one hundred eighty-one thousand, two hundred seven".