20011020200101 has 48 divisors (see below), whose sum is σ = 24889939200000. Its totient is φ = 15993905971680.

The previous prime is 20011020200071. The next prime is 20011020200107. The reversal of 20011020200101 is 10100202011002.

It is not a de Polignac number, because 20011020200101 - 2⁵ = 20011020200069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011020200107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39341800 + ... + 39847198.

It is an arithmetic number, because the mean of its divisors is an integer number (518540400000).

Almost surely, 2^{20011020200101} is an apocalyptic number.

It is an amenable number.

20011020200101 is a deficient number, since it is larger than the sum of its proper divisors (4878918999899).

20011020200101 is a wasteful number, since it uses less digits than its factorization.

20011020200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506102 (or 506095 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20011020200101 its reverse (10100202011002), we get a palindrome (30111222211103).

The spelling of 20011020200101 in words is "twenty trillion, eleven billion, twenty million, two hundred thousand, one hundred one".