212011011211 has 2 divisors, whose sum is σ = 212011011212. Its totient is φ = 212011011210.

The previous prime is 212011011197. The next prime is 212011011221. The reversal of 212011011211 is 112110110212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212011011211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212011011191 and 212011011200.

It is not a weakly prime, because it can be changed into another prime (212011011221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106005505605 + 106005505606.

It is an arithmetic number, because the mean of its divisors is an integer number (106005505606).

Almost surely, 2^212011011211 is an apocalyptic number.

212011011211 is a deficient number, since it is larger than the sum of its proper divisors (1).

212011011211 is an equidigital number, since it uses as much as digits as its factorization.

212011011211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 212011011211 its reverse (112110110212), we get a palindrome (324121121423).

Subtracting from 212011011211 its reverse (112110110212), we obtain a palindrome (99900900999).

The spelling of 212011011211 in words is "two hundred twelve billion, eleven million, eleven thousand, two hundred eleven".