200012020021000 has 128 divisors (see below), whose sum is σ = 514795779313920. Its totient is φ = 72731643160000.

The previous prime is 200012020020997. The next prime is 200012020021003. The reversal of 200012020021000 is 120020210002.

It is an interprime number because it is at equal distance from previous prime (200012020020997) and next prime (200012020021003).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (200012020021003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73804996 + ... + 76466995.

It is an arithmetic number, because the mean of its divisors is an integer number (4021842025890).

Almost surely, 2^{200012020021000} is an apocalyptic number.

200012020021000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200012020021000 is an abundant number, since it is smaller than the sum of its proper divisors (314783759292920).

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

200012020021000 is a wasteful number, since it uses less digits than its factorization.

200012020021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150272045 (or 150272009 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 200012020021000 its reverse (120020210002), we get a palindrome (200132040231002).

The spelling of 200012020021000 in words is "two hundred trillion, twelve billion, twenty million, twenty-one thousand".