20001200012101 has 48 divisors (see below), whose sum is σ = 26834418504000. Its totient is φ = 14700591037440.

The previous prime is 20001200012083. The next prime is 20001200012141. The reversal of 20001200012101 is 10121000210002.

It is not a de Polignac number, because 20001200012101 - 2¹¹ = 20001200010053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001200012141) 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 47 ways as a sum of consecutive naturals, for example, 1919116 + ... + 6609493.

It is an arithmetic number, because the mean of its divisors is an integer number (559050385500).

Almost surely, 2^{20001200012101} is an apocalyptic number.

It is an amenable number.

20001200012101 is a deficient number, since it is larger than the sum of its proper divisors (6833218491899).

20001200012101 is a wasteful number, since it uses less digits than its factorization.

20001200012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8528882 (or 8528875 counting only the distinct ones).

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

Adding to 20001200012101 its reverse (10121000210002), we get a palindrome (30122200222103).

The spelling of 20001200012101 in words is "twenty trillion, one billion, two hundred million, twelve thousand, one hundred one".