12122016171020 has 24 divisors (see below), whose sum is σ = 29092838810784. Its totient is φ = 4156119830016.

The previous prime is 12122016171019. The next prime is 12122016171059. The reversal of 12122016171020 is 2017161022121.

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, 43292914757 + ... + 43292915036.

It is an arithmetic number, because the mean of its divisors is an integer number (1212201617116).

Almost surely, 2^{12122016171020} is an apocalyptic number.

12122016171020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122016171020 is an abundant number, since it is smaller than the sum of its proper divisors (16970822639764).

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

12122016171020 is a wasteful number, since it uses less digits than its factorization.

12122016171020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86585829809 (or 86585829807 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 26.

Adding to 12122016171020 its reverse (2017161022121), we get a palindrome (14139177193141).

The spelling of 12122016171020 in words is "twelve trillion, one hundred twenty-two billion, sixteen million, one hundred seventy-one thousand, twenty".