122646389219 has 2 divisors, whose sum is σ = 122646389220. Its totient is φ = 122646389218.

The previous prime is 122646389183. The next prime is 122646389231. The reversal of 122646389219 is 912983646221.

It is a strong prime.

It is an emirp because it is prime and its reverse (912983646221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122646389219 is a prime.

It is a super-2 number, since 2×122646389219² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122646389419) 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, 61323194609 + 61323194610.

It is an arithmetic number, because the mean of its divisors is an integer number (61323194610).

Almost surely, 2^122646389219 is an apocalyptic number.

122646389219 is a deficient number, since it is larger than the sum of its proper divisors (1).

122646389219 is an equidigital number, since it uses as much as digits as its factorization.

122646389219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 53.

The spelling of 122646389219 in words is "one hundred twenty-two billion, six hundred forty-six million, three hundred eighty-nine thousand, two hundred nineteen".