101011111212211 has 2 divisors, whose sum is σ = 101011111212212. Its totient is φ = 101011111212210.

The previous prime is 101011111212181. The next prime is 101011111212293. The reversal of 101011111212211 is 112212111110101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101011111212211 is a prime.

It is not a weakly prime, because it can be changed into another prime (101011111212511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50505555606105 + 50505555606106.

It is an arithmetic number, because the mean of its divisors is an integer number (50505555606106).

Almost surely, 2^{101011111212211} is an apocalyptic number.

101011111212211 is a deficient number, since it is larger than the sum of its proper divisors (1).

101011111212211 is an equidigital number, since it uses as much as digits as its factorization.

101011111212211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 101011111212211 its reverse (112212111110101), we get a palindrome (213223222322312).

The spelling of 101011111212211 in words is "one hundred one trillion, eleven billion, one hundred eleven million, two hundred twelve thousand, two hundred eleven".