200001121000120 has 128 divisors (see below), whose sum is σ = 533418641049600. Its totient is φ = 66677329958400.

The previous prime is 200001120999983. The next prime is 200001121000183. The reversal of 200001121000120 is 21000121100002.

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 = 200001121000097 and 200001121000106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 385605019 + ... + 386123338.

It is an arithmetic number, because the mean of its divisors is an integer number (4167333133200).

Almost surely, 2^{200001121000120} is an apocalyptic number.

200001121000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200001121000120 is an abundant number, since it is smaller than the sum of its proper divisors (333417520049480).

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

200001121000120 is a wasteful number, since it uses less digits than its factorization.

200001121000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771728429 (or 771728425 counting only the distinct ones).

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

Adding to 200001121000120 its reverse (21000121100002), we get a palindrome (221001242100122).

The spelling of 200001121000120 in words is "two hundred trillion, one billion, one hundred twenty-one million, one hundred twenty", and thus it is an aban number.