200121020112 has 240 divisors, whose sum is σ = 573589859328. Its totient is φ = 60072929280.

The previous prime is 200121020093. The next prime is 200121020117. The reversal of 200121020112 is 211020121002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121020117) by changing a digit.

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, 82116558 + ... + 82118994.

Almost surely, 2^200121020112 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 200121020112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286794929664).

200121020112 is an abundant number, since it is smaller than the sum of its proper divisors (373468839216).

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

200121020112 is a wasteful number, since it uses less digits than its factorization.

200121020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718 (or 2699 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 200121020112 its reverse (211020121002), we get a palindrome (411141141114).

The spelling of 200121020112 in words is "two hundred billion, one hundred twenty-one million, twenty thousand, one hundred twelve".