2112145054500 has 384 divisors, whose sum is σ = 6676888458240. Its totient is φ = 515754086400.

The previous prime is 2112145054499. The next prime is 2112145054511. The reversal of 2112145054500 is 54505412112.

It is a super-2 number, since 2×2112145054500² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1870809936 + ... + 1870811064.

It is an arithmetic number, because the mean of its divisors is an integer number (17387730360).

Almost surely, 2^{2112145054500} is an apocalyptic number.

2112145054500 is a gapful number since it is divisible by the number (20) 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 2112145054500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3338444229120).

2112145054500 is an abundant number, since it is smaller than the sum of its proper divisors (4564743403740).

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

2112145054500 is a wasteful number, since it uses less digits than its factorization.

2112145054500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848 (or 1836 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 2112145054500 in words is "two trillion, one hundred twelve billion, one hundred forty-five million, fifty-four thousand, five hundred".