122123121985 has 8 divisors (see below), whose sum is σ = 146691286056. Its totient is φ = 97602804480.

The previous prime is 122123121863. The next prime is 122123122013. The reversal of 122123121985 is 589121321221.

It can be written as a sum of positive squares in 4 ways, for example, as 38805454081 + 83317667904 = 196991^2 + 288648^2 .

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

It is not a de Polignac number, because 122123121985 - 2⁹ = 122123121473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11956024 + ... + 11966233.

It is an arithmetic number, because the mean of its divisors is an integer number (18336410757).

Almost surely, 2^122123121985 is an apocalyptic number.

It is an amenable number.

122123121985 is a deficient number, since it is larger than the sum of its proper divisors (24568164071).

122123121985 is a wasteful number, since it uses less digits than its factorization.

122123121985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23923283.

The product of its digits is 17280, while the sum is 37.

The spelling of 122123121985 in words is "one hundred twenty-two billion, one hundred twenty-three million, one hundred twenty-one thousand, nine hundred eighty-five".