20001201102201 has 16 divisors (see below), whose sum is σ = 29095781142528. Its totient is φ = 12120637981200.

The previous prime is 20001201102133. The next prime is 20001201102227. The reversal of 20001201102201 is 10220110210002.

It is not a de Polignac number, because 20001201102201 - 2¹⁰ = 20001201101177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20001201102251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32240101 + ... + 32854626.

It is an arithmetic number, because the mean of its divisors is an integer number (1818486321408).

Almost surely, 2^{20001201102201} is an apocalyptic number.

It is an amenable number.

20001201102201 is a deficient number, since it is larger than the sum of its proper divisors (9094580040327).

20001201102201 is a wasteful number, since it uses less digits than its factorization.

20001201102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65104052.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20001201102201 its reverse (10220110210002), we get a palindrome (30221311312203).

The spelling of 20001201102201 in words is "twenty trillion, one billion, two hundred one million, one hundred two thousand, two hundred one".