212112110210111 has 2 divisors, whose sum is σ = 212112110210112. Its totient is φ = 212112110210110.

The previous prime is 212112110210101. The next prime is 212112110210159. The reversal of 212112110210111 is 111012011211212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212112110210111 - 2¹⁸ = 212112109947967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212112110210111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212112110210101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106056055105055 + 106056055105056.

It is an arithmetic number, because the mean of its divisors is an integer number (106056055105056).

Almost surely, 2^{212112110210111} is an apocalyptic number.

212112110210111 is a deficient number, since it is larger than the sum of its proper divisors (1).

212112110210111 is an equidigital number, since it uses as much as digits as its factorization.

212112110210111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 212112110210111 its reverse (111012011211212), we get a palindrome (323124121421323).

The spelling of 212112110210111 in words is "two hundred twelve trillion, one hundred twelve billion, one hundred ten million, two hundred ten thousand, one hundred eleven".