212311021332211 has 16 divisors (see below), whose sum is σ = 217417133413216. Its totient is φ = 207212600238336.

The previous prime is 212311021332203. The next prime is 212311021332257. The reversal of 212311021332211 is 112233120113212.

It is a cyclic number.

It is not a de Polignac number, because 212311021332211 - 2³ = 212311021332203 is a prime.

It is a super-2 number, since 2×212311021332211² (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 (212311021032211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 739170421 + ... + 739457593.

It is an arithmetic number, because the mean of its divisors is an integer number (13588570838326).

Almost surely, 2^{212311021332211} is an apocalyptic number.

212311021332211 is a deficient number, since it is larger than the sum of its proper divisors (5106112081005).

212311021332211 is a wasteful number, since it uses less digits than its factorization.

212311021332211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300502.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 212311021332211 its reverse (112233120113212), we get a palindrome (324544141445423).

The spelling of 212311021332211 in words is "two hundred twelve trillion, three hundred eleven billion, twenty-one million, three hundred thirty-two thousand, two hundred eleven".