212110011211 has 48 divisors (see below), whose sum is σ = 263580713280. Its totient is φ = 169595596800.

The previous prime is 212110011203. The next prime is 212110011341. The reversal of 212110011211 is 112110011212.

It is a happy number.

It is not a de Polignac number, because 212110011211 - 2³ = 212110011203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212110011191 and 212110011200.

It is not an unprimeable number, because it can be changed into a prime (212110011811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64021891 + ... + 64025203.

It is an arithmetic number, because the mean of its divisors is an integer number (5491264860).

Almost surely, 2^212110011211 is an apocalyptic number.

212110011211 is a deficient number, since it is larger than the sum of its proper divisors (51470702069).

212110011211 is a wasteful number, since it uses less digits than its factorization.

212110011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4004 (or 3997 counting only the distinct ones).

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

Adding to 212110011211 its reverse (112110011212), we get a palindrome (324220022423).

Subtracting from 212110011211 its reverse (112110011212), we obtain a palindrome (99999999999).

The spelling of 212110011211 in words is "two hundred twelve billion, one hundred ten million, eleven thousand, two hundred eleven".