200212120020 has 144 divisors (see below), whose sum is σ = 616721212800. Its totient is φ = 48494434560.

The previous prime is 200212119979. The next prime is 200212120021. The reversal of 200212120020 is 20021212002.

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

It is a junction number, because it is equal to n+sod(n) for n = 200212119978 and 200212120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200212120021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8867706 + ... + 8890254.

It is an arithmetic number, because the mean of its divisors is an integer number (4282786200).

Almost surely, 2^200212120020 is an apocalyptic number.

200212120020 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 200212120020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308360606400).

200212120020 is an abundant number, since it is smaller than the sum of its proper divisors (416509092780).

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

200212120020 is a wasteful number, since it uses less digits than its factorization.

200212120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23806 (or 23793 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 200212120020 its reverse (20021212002), we get a palindrome (220233332022).

The spelling of 200212120020 in words is "two hundred billion, two hundred twelve million, one hundred twenty thousand, twenty".