213222131093 has 2 divisors, whose sum is σ = 213222131094. Its totient is φ = 213222131092.

The previous prime is 213222130949. The next prime is 213222131099. The reversal of 213222131093 is 390131222312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142987590769 + 70234540324 = 378137^2 + 265018^2 .

It is a cyclic number.

It is not a de Polignac number, because 213222131093 - 2⁸ = 213222130837 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 (213222131099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106611065546 + 106611065547.

It is an arithmetic number, because the mean of its divisors is an integer number (106611065547).

Almost surely, 2^213222131093 is an apocalyptic number.

It is an amenable number.

213222131093 is a deficient number, since it is larger than the sum of its proper divisors (1).

213222131093 is an equidigital number, since it uses as much as digits as its factorization.

213222131093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 213222131093 in words is "two hundred thirteen billion, two hundred twenty-two million, one hundred thirty-one thousand, ninety-three".