212111102211 has 8 divisors (see below), whose sum is σ = 283232552784. Its totient is φ = 141198526560.

The previous prime is 212111102207. The next prime is 212111102213. The reversal of 212111102211 is 112201111212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212111102211 - 2² = 212111102207 is a prime.

It is a super-2 number, since 2×212111102211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212111102213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52216360 + ... + 52220421.

It is an arithmetic number, because the mean of its divisors is an integer number (35404069098).

Almost surely, 2^212111102211 is an apocalyptic number.

212111102211 is a deficient number, since it is larger than the sum of its proper divisors (71121450573).

212111102211 is a wasteful number, since it uses less digits than its factorization.

212111102211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104437461.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212111102211 its reverse (112201111212), we get a palindrome (324312213423).

Subtracting from 212111102211 its reverse (112201111212), we obtain a palindrome (99909990999).

The spelling of 212111102211 in words is "two hundred twelve billion, one hundred eleven million, one hundred two thousand, two hundred eleven".