20012000100001 has 16 divisors (see below), whose sum is σ = 24631186809600. Its totient is φ = 15833006440128.

The previous prime is 20012000099963. The next prime is 20012000100089. The reversal of 20012000100001 is 10000100021002.

It is a cyclic number.

It is not a de Polignac number, because 20012000100001 - 2¹⁷ = 20011999968929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is not an unprimeable number, because it can be changed into a prime (20012000100901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2423221 + ... + 6774658.

It is an arithmetic number, because the mean of its divisors is an integer number (1539449175600).

Almost surely, 2^{20012000100001} is an apocalyptic number.

It is an amenable number.

20012000100001 is a deficient number, since it is larger than the sum of its proper divisors (4619186709599).

20012000100001 is a wasteful number, since it uses less digits than its factorization.

20012000100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9221808.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20012000100001 its reverse (10000100021002), we get a palindrome (30012100121003).

The spelling of 20012000100001 in words is "twenty trillion, twelve billion, one hundred thousand, one".