1803212107200 has 1344 divisors, whose sum is σ = 7915584798720. Its totient is φ = 390396948480.

The previous prime is 1803212107199. The next prime is 1803212107241. The reversal of 1803212107200 is 27012123081.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 744205189 + ... + 744207611.

Almost surely, 2^{1803212107200} is an apocalyptic number.

1803212107200 is a gapful number since it is divisible by the number (10) 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 1803212107200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3957792399360).

1803212107200 is an abundant number, since it is smaller than the sum of its proper divisors (6112372691520).

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

1803212107200 is a wasteful number, since it uses less digits than its factorization.

1803212107200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591 (or 2570 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The spelling of 1803212107200 in words is "one trillion, eight hundred three billion, two hundred twelve million, one hundred seven thousand, two hundred".