22222201112213 has 2 divisors, whose sum is σ = 22222201112214. Its totient is φ = 22222201112212.

The previous prime is 22222201112197. The next prime is 22222201112227. The reversal of 22222201112213 is 31221110222222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15964483731364 + 6257717380849 = 3995558^2 + 2501543^2 .

It is a cyclic number.

It is not a de Polignac number, because 22222201112213 - 2⁴ = 22222201112197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22222201112263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11111100556106 + 11111100556107.

It is an arithmetic number, because the mean of its divisors is an integer number (11111100556107).

Almost surely, 2^{22222201112213} is an apocalyptic number.

It is an amenable number.

22222201112213 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222201112213 is an equidigital number, since it uses as much as digits as its factorization.

22222201112213 is an odious number, because the sum of its binary digits is odd.

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

Adding to 22222201112213 its reverse (31221110222222), we get a palindrome (53443311334435).

The spelling of 22222201112213 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred one million, one hundred twelve thousand, two hundred thirteen".