101210211211 has 2 divisors, whose sum is σ = 101210211212. Its totient is φ = 101210211210.

The previous prime is 101210211209. The next prime is 101210211247. The reversal of 101210211211 is 112112012101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101210211211 - 2¹ = 101210211209 is a prime.

Together with 101210211209, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 101210211191 and 101210211200.

It is not a weakly prime, because it can be changed into another prime (101210211281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605105605 + 50605105606.

It is an arithmetic number, because the mean of its divisors is an integer number (50605105606).

Almost surely, 2^101210211211 is an apocalyptic number.

101210211211 is a deficient number, since it is larger than the sum of its proper divisors (1).

101210211211 is an equidigital number, since it uses as much as digits as its factorization.

101210211211 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 13.

Adding to 101210211211 its reverse (112112012101), we get a palindrome (213322223312).

The spelling of 101210211211 in words is "one hundred one billion, two hundred ten million, two hundred eleven thousand, two hundred eleven".