200120212020 has 48 divisors (see below), whose sum is σ = 561487264128. Its totient is φ = 53255802240.

The previous prime is 200120211971. The next prime is 200120212049. The reversal of 200120212020 is 20212021002.

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 = 200120211987 and 200120212005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3395151 + ... + 3453590.

It is an arithmetic number, because the mean of its divisors is an integer number (11697651336).

Almost surely, 2^200120212020 is an apocalyptic number.

200120212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200120212020 is an abundant number, since it is smaller than the sum of its proper divisors (361367052108).

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

200120212020 is a wasteful number, since it uses less digits than its factorization.

200120212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6849240 (or 6849238 counting only the distinct ones).

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

Adding to 200120212020 its reverse (20212021002), we get a palindrome (220332233022).

The spelling of 200120212020 in words is "two hundred billion, one hundred twenty million, two hundred twelve thousand, twenty".