212110101211 has 2 divisors, whose sum is σ = 212110101212. Its totient is φ = 212110101210.

The previous prime is 212110101197. The next prime is 212110101227. The reversal of 212110101211 is 112101011212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212110101211 - 2⁷ = 212110101083 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212110101191 and 212110101200.

It is not a weakly prime, because it can be changed into another prime (212110101251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106055050605 + 106055050606.

It is an arithmetic number, because the mean of its divisors is an integer number (106055050606).

Almost surely, 2^212110101211 is an apocalyptic number.

212110101211 is a deficient number, since it is larger than the sum of its proper divisors (1).

212110101211 is an equidigital number, since it uses as much as digits as its factorization.

212110101211 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 212110101211 its reverse (112101011212), we get a palindrome (324211112423).

The spelling of 212110101211 in words is "two hundred twelve billion, one hundred ten million, one hundred one thousand, two hundred eleven".