12789820122 has 16 divisors (see below), whose sum is σ = 25588615392. Its totient is φ = 4261777520.

The previous prime is 12789820117. The next prime is 12789820139. The reversal of 12789820122 is 22102898721.

It is a super-3 number, since 3×12789820122³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 355368 + ... + 389699.

It is an arithmetic number, because the mean of its divisors is an integer number (1599288462).

Almost surely, 2^12789820122 is an apocalyptic number.

12789820122 is an abundant number, since it is smaller than the sum of its proper divisors (12798795270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12789820122 is a wasteful number, since it uses less digits than its factorization.

12789820122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747933.

The product of its (nonzero) digits is 64512, while the sum is 42.

The spelling of 12789820122 in words is "twelve billion, seven hundred eighty-nine million, eight hundred twenty thousand, one hundred twenty-two".