20002012100001 has 16 divisors (see below), whose sum is σ = 30191716379520. Its totient is φ = 13083077095920.

The previous prime is 20002012099991. The next prime is 20002012100111. The reversal of 20002012100001 is 10000121020002.

It is not a de Polignac number, because 20002012100001 - 2¹⁰ = 20002012098977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20002012107001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6988821805 + ... + 6988824666.

It is an arithmetic number, because the mean of its divisors is an integer number (1886982273720).

Almost surely, 2^{20002012100001} is an apocalyptic number.

It is an amenable number.

20002012100001 is a deficient number, since it is larger than the sum of its proper divisors (10189704279519).

20002012100001 is a wasteful number, since it uses less digits than its factorization.

20002012100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13977646533 (or 13977646527 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20002012100001 its reverse (10000121020002), we get a palindrome (30002133120003).

The spelling of 20002012100001 in words is "twenty trillion, two billion, twelve million, one hundred thousand, one".