20001022121103 has 8 divisors (see below), whose sum is σ = 26670351932928. Its totient is φ = 13332853528344.

The previous prime is 20001022121089. The next prime is 20001022121149. The reversal of 20001022121103 is 30112122010002.

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

It is not a de Polignac number, because 20001022121103 - 2¹² = 20001022117007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001022121803) 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, 290264575 + ... + 290333472.

It is an arithmetic number, because the mean of its divisors is an integer number (3333793991616).

Almost surely, 2^{20001022121103} is an apocalyptic number.

20001022121103 is a deficient number, since it is larger than the sum of its proper divisors (6669329811825).

20001022121103 is a wasteful number, since it uses less digits than its factorization.

20001022121103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580609533.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20001022121103 its reverse (30112122010002), we get a palindrome (50113144131105).

The spelling of 20001022121103 in words is "twenty trillion, one billion, twenty-two million, one hundred twenty-one thousand, one hundred three".