122122119787879 has 2 divisors, whose sum is σ = 122122119787880. Its totient is φ = 122122119787878.

The previous prime is 122122119787867. The next prime is 122122119787933. The reversal of 122122119787879 is 978787911221221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122122119787879 - 2¹⁹ = 122122119263591 is a prime.

It is a super-2 number, since 2×122122119787879² (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 (122122119787819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61061059893939 + 61061059893940.

It is an arithmetic number, because the mean of its divisors is an integer number (61061059893940).

Almost surely, 2^{122122119787879} is an apocalyptic number.

122122119787879 is a deficient number, since it is larger than the sum of its proper divisors (1).

122122119787879 is an equidigital number, since it uses as much as digits as its factorization.

122122119787879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28449792, while the sum is 67.

The spelling of 122122119787879 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, one hundred nineteen million, seven hundred eighty-seven thousand, eight hundred seventy-nine".