122443032106991 has 2 divisors, whose sum is σ = 122443032106992. Its totient is φ = 122443032106990.

The previous prime is 122443032106979. The next prime is 122443032107051. The reversal of 122443032106991 is 199601230344221.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (199601230344221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122443032106991 is a prime.

It is a super-2 number, since 2×122443032106991² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122443032106931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61221516053495 + 61221516053496.

It is an arithmetic number, because the mean of its divisors is an integer number (61221516053496).

Almost surely, 2^{122443032106991} is an apocalyptic number.

122443032106991 is a deficient number, since it is larger than the sum of its proper divisors (1).

122443032106991 is an equidigital number, since it uses as much as digits as its factorization.

122443032106991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 122443032106991 in words is "one hundred twenty-two trillion, four hundred forty-three billion, thirty-two million, one hundred six thousand, nine hundred ninety-one".