2172984754122 has 192 divisors, whose sum is σ = 6101412145920. Its totient is φ = 542771269632.

The previous prime is 2172984754099. The next prime is 2172984754163. The reversal of 2172984754122 is 2214574892712.

2172984754122 is a `hidden beast` number, since 2 + 1 + 7 + 2 + 98 + 4 + 7 + 541 + 2 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 132353658 + ... + 132370074.

It is an arithmetic number, because the mean of its divisors is an integer number (31778188260).

Almost surely, 2^{2172984754122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2172984754122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3050706072960).

2172984754122 is an abundant number, since it is smaller than the sum of its proper divisors (3928427391798).

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

2172984754122 is a wasteful number, since it uses less digits than its factorization.

2172984754122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20717 (or 20714 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The spelling of 2172984754122 in words is "two trillion, one hundred seventy-two billion, nine hundred eighty-four million, seven hundred fifty-four thousand, one hundred twenty-two".