20001102101201 has 8 divisors (see below), whose sum is σ = 21539683273920. Its totient is φ = 18462525908112.

The previous prime is 20001102101153. The next prime is 20001102101213. The reversal of 20001102101201 is 10210120110002.

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

It is not a de Polignac number, because 20001102101201 - 2²² = 20001097906897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001102121201) 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, 14130506 + ... + 15481388.

It is an arithmetic number, because the mean of its divisors is an integer number (2692460409240).

Almost surely, 2^{20001102101201} is an apocalyptic number.

It is an amenable number.

20001102101201 is a deficient number, since it is larger than the sum of its proper divisors (1538581172719).

20001102101201 is a wasteful number, since it uses less digits than its factorization.

20001102101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489815.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20001102101201 its reverse (10210120110002), we get a palindrome (30211222211203).

The spelling of 20001102101201 in words is "twenty trillion, one billion, one hundred two million, one hundred one thousand, two hundred one".