12122210357 has 2 divisors, whose sum is σ = 12122210358. Its totient is φ = 12122210356.

The previous prime is 12122210339. The next prime is 12122210369. The reversal of 12122210357 is 75301222121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11956547716 + 165662641 = 109346^2 + 12871^2 .

It is an emirp because it is prime and its reverse (75301222121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12122210357 - 2³⁰ = 11048468533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12122210657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061105178 + 6061105179.

It is an arithmetic number, because the mean of its divisors is an integer number (6061105179).

Almost surely, 2^12122210357 is an apocalyptic number.

It is an amenable number.

12122210357 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122210357 is an equidigital number, since it uses as much as digits as its factorization.

12122210357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

Adding to 12122210357 its reverse (75301222121), we get a palindrome (87423432478).

The spelling of 12122210357 in words is "twelve billion, one hundred twenty-two million, two hundred ten thousand, three hundred fifty-seven".