212210212111393 has 2 divisors, whose sum is σ = 212210212111394. Its totient is φ = 212210212111392.

The previous prime is 212210212111343. The next prime is 212210212111397. The reversal of 212210212111393 is 393111212012212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112782530887744 + 99427681223649 = 10619912^2 + 9971343^2 .

It is a cyclic number.

It is not a de Polignac number, because 212210212111393 - 2¹⁷ = 212210211980321 is a prime.

It is not a weakly prime, because it can be changed into another prime (212210212111397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106105106055696 + 106105106055697.

It is an arithmetic number, because the mean of its divisors is an integer number (106105106055697).

Almost surely, 2^{212210212111393} is an apocalyptic number.

It is an amenable number.

212210212111393 is a deficient number, since it is larger than the sum of its proper divisors (1).

212210212111393 is an equidigital number, since it uses as much as digits as its factorization.

212210212111393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 212210212111393 in words is "two hundred twelve trillion, two hundred ten billion, two hundred twelve million, one hundred eleven thousand, three hundred ninety-three".