212220012210111 has 24 divisors (see below), whose sum is σ = 306625661897360. Its totient is φ = 141440482250496.

The previous prime is 212220012210071. The next prime is 212220012210161. The reversal of 212220012210111 is 111012210022212.

212220012210111 is a `hidden beast` number, since 212 + 220 + 0 + 1 + 221 + 0 + 1 + 11 = 666.

It is not a de Polignac number, because 212220012210111 - 2³³ = 212211422275519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212220012210161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1515213561 + ... + 1515353613.

Almost surely, 2^{212220012210111} is an apocalyptic number.

212220012210111 is a deficient number, since it is larger than the sum of its proper divisors (94405649687249).

212220012210111 is a wasteful number, since it uses less digits than its factorization.

212220012210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185895 (or 185892 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212220012210111 its reverse (111012210022212), we get a palindrome (323232222232323).

The spelling of 212220012210111 in words is "two hundred twelve trillion, two hundred twenty billion, twelve million, two hundred ten thousand, one hundred eleven".