2100001200201 has 12 divisors (see below), whose sum is σ = 3062784923328. Its totient is φ = 1386408558744.

The previous prime is 2100001200197. The next prime is 2100001200251. The reversal of 2100001200201 is 1020021000012.

It is not a de Polignac number, because 2100001200201 - 2² = 2100001200197 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 (2100001200251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1132685805 + ... + 1132687658.

It is an arithmetic number, because the mean of its divisors is an integer number (255232076944).

Almost surely, 2^{2100001200201} is an apocalyptic number.

It is an amenable number.

2100001200201 is a deficient number, since it is larger than the sum of its proper divisors (962783723127).

2100001200201 is a wasteful number, since it uses less digits than its factorization.

2100001200201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265373572 (or 2265373569 counting only the distinct ones).

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

Adding to 2100001200201 its reverse (1020021000012), we get a palindrome (3120022200213).

The spelling of 2100001200201 in words is "two trillion, one hundred billion, one million, two hundred thousand, two hundred one".