2122122212213 has 2 divisors, whose sum is σ = 2122122212214. Its totient is φ = 2122122212212.

The previous prime is 2122122212209. The next prime is 2122122212279. The reversal of 2122122212213 is 3122122212212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1338688338289 + 783433873924 = 1157017^2 + 885118^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122122212213 - 2² = 2122122212209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122122212813) 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 as a sum of consecutive naturals, namely, 1061061106106 + 1061061106107.

It is an arithmetic number, because the mean of its divisors is an integer number (1061061106107).

Almost surely, 2^{2122122212213} is an apocalyptic number.

It is an amenable number.

2122122212213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122122212213 is an equidigital number, since it uses as much as digits as its factorization.

2122122212213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 23.

Adding to 2122122212213 its reverse (3122122212212), we get a palindrome (5244244424425).

Subtracting 2122122212213 from its reverse (3122122212212), we obtain a palindrome (999999999999).

The spelling of 2122122212213 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred twelve thousand, two hundred thirteen".