200011001002120 has 128 divisors (see below), whose sum is σ = 561994158735360. Its totient is φ = 62238387029760.

The previous prime is 200011001002103. The next prime is 200011001002129. The reversal of 200011001002120 is 21200100110002.

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

It is a junction number, because it is equal to n+sod(n) for n = 200011001002097 and 200011001002106.

It is not an unprimeable number, because it can be changed into a prime (200011001002129) 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, 51621904 + ... + 55361023.

It is an arithmetic number, because the mean of its divisors is an integer number (4390579365120).

Almost surely, 2^{200011001002120} is an apocalyptic number.

200011001002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200011001002120 is an abundant number, since it is smaller than the sum of its proper divisors (361983157733240).

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

200011001002120 is a wasteful number, since it uses less digits than its factorization.

200011001002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106983563 (or 106983559 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 200011001002120 its reverse (21200100110002), we get a palindrome (221211101112122).

The spelling of 200011001002120 in words is "two hundred trillion, eleven billion, one million, two thousand, one hundred twenty".