213222130949 has 2 divisors, whose sum is σ = 213222130950. Its totient is φ = 213222130948.

The previous prime is 213222130889. The next prime is 213222131093. The reversal of 213222130949 is 949031222312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210261682849 + 2960448100 = 458543^2 + 54410^2 .

It is a cyclic number.

It is not a de Polignac number, because 213222130949 - 2¹² = 213222126853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213222130549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106611065474 + 106611065475.

It is an arithmetic number, because the mean of its divisors is an integer number (106611065475).

Almost surely, 2^213222130949 is an apocalyptic number.

It is an amenable number.

213222130949 is a deficient number, since it is larger than the sum of its proper divisors (1).

213222130949 is an equidigital number, since it uses as much as digits as its factorization.

213222130949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 213222130949 in words is "two hundred thirteen billion, two hundred twenty-two million, one hundred thirty thousand, nine hundred forty-nine".