122789512285 has 8 divisors (see below), whose sum is σ = 160742634336. Its totient is φ = 89301463440.

The previous prime is 122789512267. The next prime is 122789512301. The reversal of 122789512285 is 582215987221.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-122789512285 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1116268239 + ... + 1116268348.

It is an arithmetic number, because the mean of its divisors is an integer number (20092829292).

Almost surely, 2^122789512285 is an apocalyptic number.

It is an amenable number.

122789512285 is a deficient number, since it is larger than the sum of its proper divisors (37953122051).

122789512285 is a wasteful number, since it uses less digits than its factorization.

122789512285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232536603.

The product of its digits is 1612800, while the sum is 52.

The spelling of 122789512285 in words is "one hundred twenty-two billion, seven hundred eighty-nine million, five hundred twelve thousand, two hundred eighty-five".