122123738898 has 150 divisors (see below), whose sum is σ = 316400385795. Its totient is φ = 34041460320.

The previous prime is 122123738839. The next prime is 122123738903. The reversal of 122123738898 is 898837321221.

122123738898 is a `hidden beast` number, since 1 + 2 + 21 + 237 + 388 + 9 + 8 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 13795207209 + 108328531689 = 117453^2 + 329133^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=247107.

It is a zygodrome in base 7.

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 74 ways as a sum of consecutive naturals, for example, 2978627758 + ... + 2978627798.

Almost surely, 2^122123738898 is an apocalyptic number.

122123738898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122123738898

122123738898 is an abundant number, since it is smaller than the sum of its proper divisors (194276646897).

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

122123738898 is an frugal number, since it uses more digits than its factorization.

122123738898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 53 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The spelling of 122123738898 in words is "one hundred twenty-two billion, one hundred twenty-three million, seven hundred thirty-eight thousand, eight hundred ninety-eight".