212010101211 has 4 divisors (see below), whose sum is σ = 282680134952. Its totient is φ = 141340067472.

The previous prime is 212010101203. The next prime is 212010101249. The reversal of 212010101211 is 112101010212.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 212010101211 - 2³ = 212010101203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212010101711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35335016866 + ... + 35335016871.

It is an arithmetic number, because the mean of its divisors is an integer number (70670033738).

Almost surely, 2^212010101211 is an apocalyptic number.

212010101211 is a deficient number, since it is larger than the sum of its proper divisors (70670033741).

212010101211 is an equidigital number, since it uses as much as digits as its factorization.

212010101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70670033740.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 212010101211 its reverse (112101010212), we get a palindrome (324111111423).

Subtracting from 212010101211 its reverse (112101010212), we obtain a palindrome (99909090999).

The spelling of 212010101211 in words is "two hundred twelve billion, ten million, one hundred one thousand, two hundred eleven".