122126126719 has 8 divisors (see below), whose sum is σ = 130762939680. Its totient is φ = 113650749696.

The previous prime is 122126126693. The next prime is 122126126761. The reversal of 122126126719 is 917621621221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122126126719 - 2⁵ = 122126126687 is a prime.

It is a super-2 number, since 2×122126126719² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122126123719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40357419 + ... + 40360444.

It is an arithmetic number, because the mean of its divisors is an integer number (16345367460).

Almost surely, 2^122126126719 is an apocalyptic number.

122126126719 is a deficient number, since it is larger than the sum of its proper divisors (8636812961).

122126126719 is an equidigital number, since it uses as much as digits as its factorization.

122126126719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80717969.

The product of its digits is 36288, while the sum is 40.

The spelling of 122126126719 in words is "one hundred twenty-two billion, one hundred twenty-six million, one hundred twenty-six thousand, seven hundred nineteen".