212011222112011 has 32 divisors (see below), whose sum is σ = 252835725772800. Its totient is φ = 177623712907200.

The previous prime is 212011222111981. The next prime is 212011222112057. The reversal of 212011222112011 is 110211222110212.

It is a happy number.

It is not a de Polignac number, because 212011222112011 - 2⁹ = 212011222111499 is a prime.

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 212011222112011.

It is not an unprimeable number, because it can be changed into a prime (212011262112011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3627316 + ... + 20908846.

It is an arithmetic number, because the mean of its divisors is an integer number (7901116430400).

Almost surely, 2^{212011222112011} is an apocalyptic number.

212011222112011 is a deficient number, since it is larger than the sum of its proper divisors (40824503660789).

212011222112011 is an equidigital number, since it uses as much as digits as its factorization.

212011222112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17282360 (or 17282346 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212011222112011 its reverse (110211222110212), we get a palindrome (322222444222223).

The spelling of 212011222112011 in words is "two hundred twelve trillion, eleven billion, two hundred twenty-two million, one hundred twelve thousand, eleven".