212221222122213 has 24 divisors (see below), whose sum is σ = 311652193950240. Its totient is φ = 139123423164960.

The previous prime is 212221222122211. The next prime is 212221222122229. The reversal of 212221222122213 is 312221222122212.

212221222122213 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 212 + 221 + 2 + 221 + 3 = 666.

It is not a de Polignac number, because 212221222122213 - 2¹ = 212221222122211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212221222122211) 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, 50814331 + ... + 54831912.

It is an arithmetic number, because the mean of its divisors is an integer number (12985508081260).

Almost surely, 2^{212221222122213} is an apocalyptic number.

It is an amenable number.

212221222122213 is a deficient number, since it is larger than the sum of its proper divisors (99430971828027).

212221222122213 is a wasteful number, since it uses less digits than its factorization.

212221222122213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105649969 (or 105649966 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 212221222122213 its reverse (312221222122212), we get a palindrome (524442444244425).

Subtracting 212221222122213 from its reverse (312221222122212), we obtain a palindrome (99999999999999).

The spelling of 212221222122213 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred thirteen".