12122019983616 has 144 divisors (see below), whose sum is σ = 32846333694720. Its totient is φ = 3967675729920.

The previous prime is 12122019983609. The next prime is 12122019983617. The reversal of 12122019983616 is 61638991022121.

It is not an unprimeable number, because it can be changed into a prime (12122019983617) 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, 39859011 + ... + 40161981.

Almost surely, 2^{12122019983616} is an apocalyptic number.

12122019983616 is a gapful number since it is divisible by the number (16) 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 12122019983616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16423166847360).

12122019983616 is an abundant number, since it is smaller than the sum of its proper divisors (20724313711104).

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

12122019983616 is an equidigital number, since it uses as much as digits as its factorization.

12122019983616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303932 (or 303918 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 51.

The spelling of 12122019983616 in words is "twelve trillion, one hundred twenty-two billion, nineteen million, nine hundred eighty-three thousand, six hundred sixteen".