212111100112211 has 8 divisors (see below), whose sum is σ = 223279089739200. Its totient is φ = 200943535236840.

The previous prime is 212111100112193. The next prime is 212111100112229. The reversal of 212111100112211 is 112211001111212.

It is an interprime number because it is at equal distance from previous prime (212111100112193) and next prime (212111100112229).

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

It is a cyclic number.

It is not a de Polignac number, because 212111100112211 - 2²⁶ = 212111033003347 is a prime.

It is a super-2 number, since 2×212111100112211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212111100112211.

It is not an unprimeable number, because it can be changed into a prime (212111100112511) 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, 105162605 + ... + 107160606.

It is an arithmetic number, because the mean of its divisors is an integer number (27909886217400).

Almost surely, 2^{212111100112211} is an apocalyptic number.

212111100112211 is a deficient number, since it is larger than the sum of its proper divisors (11167989626989).

212111100112211 is a wasteful number, since it uses less digits than its factorization.

212111100112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212375809.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 212111100112211 its reverse (112211001111212), we get a palindrome (324322101223423).

Subtracting from 212111100112211 its reverse (112211001111212), we obtain a palindrome (99900099000999).

The spelling of 212111100112211 in words is "two hundred twelve trillion, one hundred eleven billion, one hundred million, one hundred twelve thousand, two hundred eleven".