200021121312 has 192 divisors, whose sum is σ = 545522503680. Its totient is φ = 64126992384.

The previous prime is 200021121259. The next prime is 200021121371. The reversal of 200021121312 is 213121120002.

It is a junction number, because it is equal to n+sod(n) for n = 200021121291 and 200021121300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 188166093 + ... + 188167155.

It is an arithmetic number, because the mean of its divisors is an integer number (2841263040).

Almost surely, 2^200021121312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200021121312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272761251840).

200021121312 is an abundant number, since it is smaller than the sum of its proper divisors (345501382368).

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

200021121312 is a wasteful number, since it uses less digits than its factorization.

200021121312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775 (or 1767 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 200021121312 its reverse (213121120002), we get a palindrome (413142241314).

The spelling of 200021121312 in words is "two hundred billion, twenty-one million, one hundred twenty-one thousand, three hundred twelve".