212111202202211 has 12 divisors (see below), whose sum is σ = 229686669532152. Its totient is φ = 195791439370176.

The previous prime is 212111202202177. The next prime is 212111202202241. The reversal of 212111202202211 is 112202202111212.

It is a de Polignac number, because none of the positive numbers 2^k-212111202202211 is a prime.

It is a super-2 number, since 2×212111202202211² (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 (212111202202241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1809881 + ... + 20676026.

It is an arithmetic number, because the mean of its divisors is an integer number (19140555794346).

Almost surely, 2^{212111202202211} is an apocalyptic number.

212111202202211 is a deficient number, since it is larger than the sum of its proper divisors (17575467329941).

212111202202211 is a wasteful number, since it uses less digits than its factorization.

212111202202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22541750 (or 22541737 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212111202202211 its reverse (112202202111212), we get a palindrome (324313404313423).

Subtracting from 212111202202211 its reverse (112202202111212), we obtain a palindrome (99909000090999).

The spelling of 212111202202211 in words is "two hundred twelve trillion, one hundred eleven billion, two hundred two million, two hundred two thousand, two hundred eleven".