212201322211 has 4 divisors (see below), whose sum is σ = 212333207800. Its totient is φ = 212069436624.

The previous prime is 212201322181. The next prime is 212201322239. The reversal of 212201322211 is 112223102212.

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 212201322211 - 2⁷ = 212201322083 is a prime.

It is a super-2 number, since 2×212201322211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212201322811) 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, 65940381 + ... + 65943598.

It is an arithmetic number, because the mean of its divisors is an integer number (53083301950).

Almost surely, 2^212201322211 is an apocalyptic number.

212201322211 is a deficient number, since it is larger than the sum of its proper divisors (131885589).

212201322211 is a wasteful number, since it uses less digits than its factorization.

212201322211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131885588.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 212201322211 its reverse (112223102212), we get a palindrome (324424424423).

It can be divided in two parts, 21220 and 1322211, that added together give a palindrome (1343431).

The spelling of 212201322211 in words is "two hundred twelve billion, two hundred one million, three hundred twenty-two thousand, two hundred eleven".