122109141787 has 2 divisors, whose sum is σ = 122109141788. Its totient is φ = 122109141786.

The previous prime is 122109141773. The next prime is 122109141797. The reversal of 122109141787 is 787141901221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122109141787 is a prime.

It is not a weakly prime, because it can be changed into another prime (122109141797) 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, 61054570893 + 61054570894.

It is an arithmetic number, because the mean of its divisors is an integer number (61054570894).

Almost surely, 2^122109141787 is an apocalyptic number.

122109141787 is a deficient number, since it is larger than the sum of its proper divisors (1).

122109141787 is an equidigital number, since it uses as much as digits as its factorization.

122109141787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 43.

The spelling of 122109141787 in words is "one hundred twenty-two billion, one hundred nine million, one hundred forty-one thousand, seven hundred eighty-seven".