2100200120201 has 4 divisors (see below), whose sum is σ = 2100220427904. Its totient is φ = 2100179812500.

The previous prime is 2100200120191. The next prime is 2100200120219. The reversal of 2100200120201 is 1020210020012.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100200120201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100200320201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9997925 + ... + 10205826.

It is an arithmetic number, because the mean of its divisors is an integer number (525055106976).

Almost surely, 2^{2100200120201} is an apocalyptic number.

It is an amenable number.

2100200120201 is a deficient number, since it is larger than the sum of its proper divisors (20307703).

2100200120201 is a wasteful number, since it uses less digits than its factorization.

2100200120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20307702.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2100200120201 its reverse (1020210020012), we get a palindrome (3120410140213).

The spelling of 2100200120201 in words is "two trillion, one hundred billion, two hundred million, one hundred twenty thousand, two hundred one".