200012122220120 has 128 divisors (see below), whose sum is σ = 519682688179200. Its totient is φ = 67863317184000.

The previous prime is 200012122220107. The next prime is 200012122220129. The reversal of 200012122220120 is 21022221210002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200012122220129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3841970 + ... + 20366270.

It is an arithmetic number, because the mean of its divisors is an integer number (4060021001400).

Almost surely, 2^{200012122220120} is an apocalyptic number.

200012122220120 is a gapful number since it is divisible by the number (20) 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 200012122220120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259841344089600).

200012122220120 is an abundant number, since it is smaller than the sum of its proper divisors (319670565959080).

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

200012122220120 is a wasteful number, since it uses less digits than its factorization.

200012122220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16524769 (or 16524765 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 200012122220120 its reverse (21022221210002), we get a palindrome (221034343430122).

The spelling of 200012122220120 in words is "two hundred trillion, twelve billion, one hundred twenty-two million, two hundred twenty thousand, one hundred twenty".