20101200212201 has 4 divisors (see below), whose sum is σ = 20131983061572. Its totient is φ = 20070417362832.

The previous prime is 20101200212189. The next prime is 20101200212227. The reversal of 20101200212201 is 10221200210102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12198219834025 + 7902980378176 = 3492595^2 + 2811224^2 .

It is a cyclic number.

It is not a de Polignac number, because 20101200212201 - 2¹⁰ = 20101200211177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20101200212231) 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, 15391423706 + ... + 15391425011.

It is an arithmetic number, because the mean of its divisors is an integer number (5032995765393).

Almost surely, 2^{20101200212201} is an apocalyptic number.

It is an amenable number.

20101200212201 is a deficient number, since it is larger than the sum of its proper divisors (30782849371).

20101200212201 is an equidigital number, since it uses as much as digits as its factorization.

20101200212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30782849370.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20101200212201 its reverse (10221200210102), we get a palindrome (30322400422303).

The spelling of 20101200212201 in words is "twenty trillion, one hundred one billion, two hundred million, two hundred twelve thousand, two hundred one".