1000000111211 has 2 divisors, whose sum is σ = 1000000111212. Its totient is φ = 1000000111210.

The previous prime is 1000000111199. The next prime is 1000000111237. The reversal of 1000000111211 is 1121110000001.

It is a happy number.

1000000111211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (1121110000001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000000111211 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000000111241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500000055605 + 500000055606.

It is an arithmetic number, because the mean of its divisors is an integer number (500000055606).

Almost surely, 2^{1000000111211} is an apocalyptic number.

1000000111211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000000111211 is an equidigital number, since it uses as much as digits as its factorization.

1000000111211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1000000111211 its reverse (1121110000001), we get a palindrome (2121110111212).

It can be divided in two parts, 10000001 and 11211, that multiplied together give a palindrome (112110011211).

The spelling of 1000000111211 in words is "one trillion, one hundred eleven thousand, two hundred eleven".