101211210211 has 4 divisors (see below), whose sum is σ = 101258221752. Its totient is φ = 101164198672.

The previous prime is 101211210209. The next prime is 101211210239. The reversal of 101211210211 is 112012112101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112012112101 = 17099 ⋅6550799.

It is a cyclic number.

It is not a de Polignac number, because 101211210211 - 2¹ = 101211210209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101211210191 and 101211210200.

It is not an unprimeable number, because it can be changed into a prime (101211210241) 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, 23502541 + ... + 23506846.

It is an arithmetic number, because the mean of its divisors is an integer number (25314555438).

Almost surely, 2^101211210211 is an apocalyptic number.

101211210211 is a deficient number, since it is larger than the sum of its proper divisors (47011541).

101211210211 is an equidigital number, since it uses as much as digits as its factorization.

101211210211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47011540.

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

Adding to 101211210211 its reverse (112012112101), we get a palindrome (213223322312).

The spelling of 101211210211 in words is "one hundred one billion, two hundred eleven million, two hundred ten thousand, two hundred eleven".