200212122100172 has 48 divisors (see below), whose sum is σ = 438535026289920. Its totient is φ = 77862341385792.

The previous prime is 200212122100171. The next prime is 200212122100259. The reversal of 200212122100172 is 271001221212002.

It is not an unprimeable number, because it can be changed into a prime (200212122100171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4661277698 + ... + 4661320649.

It is an arithmetic number, because the mean of its divisors is an integer number (9136146381040).

Almost surely, 2^{200212122100172} is an apocalyptic number.

It is an amenable number.

200212122100172 is an abundant number, since it is smaller than the sum of its proper divisors (238322904189748).

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

200212122100172 is a wasteful number, since it uses less digits than its factorization.

200212122100172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9322598430 (or 9322598428 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 200212122100172 its reverse (271001221212002), we get a palindrome (471213343312174).

The spelling of 200212122100172 in words is "two hundred trillion, two hundred twelve billion, one hundred twenty-two million, one hundred thousand, one hundred seventy-two".