200001200102001 has 24 divisors (see below), whose sum is σ = 289602900132000. Its totient is φ = 133005439936512.

The previous prime is 200001200101939. The next prime is 200001200102027. The reversal of 200001200102001 is 100201002100002.

It is not a de Polignac number, because 200001200102001 - 2⁷ = 200001200101873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (200001200102071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45957105 + ... + 50120433.

It is an arithmetic number, because the mean of its divisors is an integer number (12066787505500).

Almost surely, 2^{200001200102001} is an apocalyptic number.

It is an amenable number.

200001200102001 is a deficient number, since it is larger than the sum of its proper divisors (89601700029999).

200001200102001 is a wasteful number, since it uses less digits than its factorization.

200001200102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4176493 (or 4176490 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 200001200102001 its reverse (100201002100002), we get a palindrome (300202202202003).

The spelling of 200001200102001 in words is "two hundred trillion, one billion, two hundred million, one hundred two thousand, one".