10111211021207 has 2 divisors, whose sum is σ = 10111211021208. Its totient is φ = 10111211021206.

The previous prime is 10111211021159. The next prime is 10111211021269. The reversal of 10111211021207 is 70212011211101.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (70212011211101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10111211021207 - 2¹² = 10111211017111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10111211021407) 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, 5055605510603 + 5055605510604.

It is an arithmetic number, because the mean of its divisors is an integer number (5055605510604).

Almost surely, 2^{10111211021207} is an apocalyptic number.

10111211021207 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111211021207 is an equidigital number, since it uses as much as digits as its factorization.

10111211021207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 10111211021207 its reverse (70212011211101), we get a palindrome (80323222232308).

The spelling of 10111211021207 in words is "ten trillion, one hundred eleven billion, two hundred eleven million, twenty-one thousand, two hundred seven".