212800223745 has 48 divisors (see below), whose sum is σ = 376959578112. Its totient is φ = 111002651520.

The previous prime is 212800223737. The next prime is 212800223813. The reversal of 212800223745 is 547322008212.

212800223745 is a `hidden beast` number, since 2 + 1 + 280 + 0 + 2 + 2 + 374 + 5 = 666.

It is not a de Polignac number, because 212800223745 - 2³ = 212800223737 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3124000 + ... + 3191390.

It is an arithmetic number, because the mean of its divisors is an integer number (7853324544).

Almost surely, 2^212800223745 is an apocalyptic number.

It is an amenable number.

212800223745 is a deficient number, since it is larger than the sum of its proper divisors (164159354367).

212800223745 is a wasteful number, since it uses less digits than its factorization.

212800223745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68942 (or 68939 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 212800223745 in words is "two hundred twelve billion, eight hundred million, two hundred twenty-three thousand, seven hundred forty-five".