200121212010020 has 48 divisors (see below), whose sum is σ = 480330059650560. Its totient is φ = 68607393999744.

The previous prime is 200121212010017. The next prime is 200121212010029. The reversal of 200121212010020 is 20010212121002.

200121212010020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 200121212009977 and 200121212010004.

It is not an unprimeable number, because it can be changed into a prime (200121212010029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56536364 + ... + 59971683.

It is an arithmetic number, because the mean of its divisors is an integer number (10006876242720).

Almost surely, 2^{200121212010020} is an apocalyptic number.

200121212010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200121212010020 is an abundant number, since it is smaller than the sum of its proper divisors (280208847640540).

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

200121212010020 is a wasteful number, since it uses less digits than its factorization.

200121212010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116520332 (or 116520330 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200121212010020 its reverse (20010212121002), we get a palindrome (220131424131022).

The spelling of 200121212010020 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twelve million, ten thousand, twenty".