212111102112211 has 4 divisors (see below), whose sum is σ = 212111138145712. Its totient is φ = 212111066078712.

The previous prime is 212111102112181. The next prime is 212111102112331. The reversal of 212111102112211 is 112211201111212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212111102112211 - 2⁵ = 212111102112179 is a prime.

It is a super-2 number, since 2×212111102112211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212111102118211) 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, 6900975 + ... + 21722008.

It is an arithmetic number, because the mean of its divisors is an integer number (53027784536428).

Almost surely, 2^{212111102112211} is an apocalyptic number.

212111102112211 is a deficient number, since it is larger than the sum of its proper divisors (36033501).

212111102112211 is an equidigital number, since it uses as much as digits as its factorization.

212111102112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36033500.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 212111102112211 its reverse (112211201111212), we get a palindrome (324322303223423).

The spelling of 212111102112211 in words is "two hundred twelve trillion, one hundred eleven billion, one hundred two million, one hundred twelve thousand, two hundred eleven".