122196775872 has 112 divisors (see below), whose sum is σ = 326915995392. Its totient is φ = 40278958080.

The previous prime is 122196775819. The next prime is 122196775873. The reversal of 122196775872 is 278577691221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122196775873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33726253 + ... + 33729875.

It is an arithmetic number, because the mean of its divisors is an integer number (2918892816).

Almost surely, 2^122196775872 is an apocalyptic number.

122196775872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122196775872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163457997696).

122196775872 is an abundant number, since it is smaller than the sum of its proper divisors (204719219520).

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

122196775872 is a wasteful number, since it uses less digits than its factorization.

122196775872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5546 (or 5536 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 57.

The spelling of 122196775872 in words is "one hundred twenty-two billion, one hundred ninety-six million, seven hundred seventy-five thousand, eight hundred seventy-two".