2101200220201 has 8 divisors (see below), whose sum is σ = 2238970938120. Its totient is φ = 1965004025088.

The previous prime is 2101200220181. The next prime is 2101200220237. The reversal of 2101200220201 is 1020220021012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 112603869225 + 1988596350976 = 335565^2 + 1410176^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2101200220201 - 2⁹ = 2101200219689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101200220001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393627946 + ... + 393633283.

It is an arithmetic number, because the mean of its divisors is an integer number (279871367265).

Almost surely, 2^{2101200220201} is an apocalyptic number.

It is an amenable number.

2101200220201 is a deficient number, since it is larger than the sum of its proper divisors (137770717919).

2101200220201 is a wasteful number, since it uses less digits than its factorization.

2101200220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787261403.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2101200220201 its reverse (1020220021012), we get a palindrome (3121420241213).

The spelling of 2101200220201 in words is "two trillion, one hundred one billion, two hundred million, two hundred twenty thousand, two hundred one".